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HTML

About HTML Preprocessors

HTML preprocessors can make writing HTML more powerful or convenient. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug.

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Adding Classes

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. So you don't have access to higher-up elements like the <html> tag. If you want to add classes there that can affect the whole document, this is the place to do it.

About the <head>

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. If you need things in the <head> of the document, put that code here.

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Insecure Resource

The resource you are linking to is using the 'http' protocol, which may not work when the browser is using https.

CSS

About CSS Preprocessors

CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

Vendor Prefixing

About Vendor Prefixing

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

We offer two popular choices: Autoprefixer (which processes your CSS server-side) and -prefix-free (which applies prefixes via a script, client-side).

Add External Stylesheets/Pens

Any URLs added here will be added as <link>s in order, and before the CSS in the editor. You can use the CSS from another Pen by using its URL and the proper URL extension.

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About External Resources

You can apply CSS to your Pen from any stylesheet on the web. Just put a URL to it here and we'll apply it, in the order you have them, before the CSS in the Pen itself.

You can also link to another Pen here (use the .css URL Extension) and we'll pull the CSS from that Pen and include it. If it's using a matching preprocessor, use the appropriate URL Extension and we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

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JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

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About External Resources

You can apply a script from anywhere on the web to your Pen. Just put a URL to it here and we'll add it, in the order you have them, before the JavaScript in the Pen itself.

If the script you link to has the file extension of a preprocessor, we'll attempt to process it before applying.

You can also link to another Pen here, and we'll pull the JavaScript from that Pen and include it. If it's using a matching preprocessor, we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

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Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

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About Packages

Using packages here is powered by esm.sh, which makes packages from npm not only available on a CDN, but prepares them for native JavaScript ESM usage.

All packages are different, so refer to their docs for how they work.

If you're using React / ReactDOM, make sure to turn on Babel for the JSX processing.

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Auto Save

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If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

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Visit your global Editor Settings.

HTML 

              
                <div class="main--container">
    <h1 class="css--buttons--title">CSS Buttons</h1>
  
    <!--   default button -->
    <h3>Default Buttons</h3>
    <div class="css--buttons--container">
      
      <!-- default -->
      <div class="hint--top" aria-label="css--button"><button class="css--button">Button</button></div>  

      <div class="hint--top" aria-label="css--button radius--button"><button class="css--button radius--button">Button</button></div>

      <div class="hint--top" aria-label="css--button left--icon--button"><button class="css--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>
      
      <div class="hint--top" aria-label="css--button right--icon--button"><button class="css--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>
      
      <div class="hint--top" aria-label="css--button center--icon--button"><button class="css--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>

      <div class="hint--top" aria-label="css--button default--border--button"><button class="css--button default--border--button">Button</button></div>

      <div class="hint--top" aria-label="css--button default--border--button radius--button"><button class="css--button default--border--button radius--button">Button</button></div>
      
      <div class="hint--top" aria-label="css--button default--border--button left--icon--button"><button class="css--button default--border--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>
      
      <div class="hint--top" aria-label="css--button default--border--button right--icon--button"><button class="css--button default--border--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>
      
      <div class="hint--top" aria-label="css--button default--border--button center--icon--button"><button class="css--button default--border--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>

      <div class="hint--top large--button--container" aria-label="css--button large--button"><button class="css--button large--button">Large Button</button></div>  

      <div class="hint--top large--button--container" aria-label="css--button default--border--button large--button"><button class="css--button default--border--button large--button">Large Button</button></div>        
      <!-- default -->
    
    </div>  
     

    <h3>Default Disabled Buttons</h3>
    <div class="css--buttons--container">

      <!-- default disabled -->
      <div class="hint--top" aria-label="css--button disabled--button"><button class="css--button disabled--button">Button</button></div>
      
      <div class="hint--top" aria-label="css--button disabled--button radius--button"><button class="css--button disabled--button radius--button">Button</button></div>
      
      <div class="hint--top" aria-label="css--button disabled--button left--icon--button"><button class="css--button disabled--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>
      
      <div class="hint--top" aria-label="css--button disabled--button right--icon--button"><button class="css--button disabled--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>

      <div class="hint--top" aria-label="css--button disabled--button center--icon--button"><button class="css--button disabled--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>
      
      <div class="hint--top" aria-label="css--button default--border--button disabled--button"><button class="css--button default--border--button disabled--button">Button</button></div>

      <div class="hint--top" aria-label="css--button default--border--button disabled--button radius--button"><button class="css--button default--border--button disabled--button radius--button">Button</button></div>

      <div class="hint--top" aria-label="css--button default--border--button disabled--button left--icon--button"><button class="css--button default--border--button disabled--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>

      <div class="hint--top" aria-label="css--button default--border--button disabled--button right--icon--button"><button class="css--button default--border--button disabled--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>
      
      <div class="hint--top" aria-label="css--button default--border--button disabled--button center--icon--button"><button class="css--button default--border--button disabled--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>
      
      <div class="hint--top large--button--container" aria-label="css--button disabled--button large--button"><button class="css--button disabled--button large--button">Large Button</button></div>

      <div class="hint--top large--button--container" aria-label="css--button default--border--button disabled--button large--button"><button class="css--button default--border--button disabled--button large--button">Large Button</button></div>
      <!-- default disabled -->
      
    </div>
    <!--   default button -->


    <!--   primary button -->
    <h3>Primary Buttons</h3>
    <div class="css--buttons--container">

      <!--   primary -->
      <div class="hint--top" aria-label="css--button primary--button"><button class="css--button primary--button">Button</button></div>  
      
      <div class="hint--top" aria-label="css--button primary--button radius--button"><button class="css--button primary--button radius--button">Button</button></div>  

      <div class="hint--top" aria-label="css--button primary--button left--icon--button"><button class="css--button primary--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>  
      
      <div class="hint--top" aria-label="css--button primary--button right--icon--button"><button class="css--button primary--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>  
      
      <div class="hint--top" aria-label="css--button primary--button center--icon--button"><button class="css--button primary--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>  

      <div class="hint--top" aria-label="css--button primary--border--button"><button class="css--button primary--border--button">Button</button></div>  
      
      <div class="hint--top" aria-label="css--button primary--border--button radius--button"><button class="css--button primary--border--button radius--button">Button</button></div>  
      
      <div class="hint--top" aria-label="css--button primary--border--button left--icon--button"><button class="css--button primary--border--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>  
      
      <div class="hint--top" aria-label="css--button primary--border--button right--icon--button"><button class="css--button primary--border--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>  
      
      <div class="hint--top" aria-label="css--button primary--border--button center--icon--button"><button class="css--button primary--border--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>  

      <div class="hint--top large--button--container" aria-label="css--button primary--button large--button"><button class="css--button primary--button large--button">Large Button</button></div>  

      <div class="hint--top large--button--container" aria-label="css--button primary--border--button large--button"><button class="css--button primary--border--button large--button">Large Button</button></div>  
      <!--   primary -->

    </div>  


    <h3>Primary Disabled Buttons</h3>
    <div class="css--buttons--container">
        
      <!--   primary disabled -->
      <div class="hint--top" aria-label="css--button primary--button disabled--button"><button class="css--button primary--button disabled--button">Button</button></div>
      
      <div class="hint--top" aria-label="css--button disabled--button radius--button"><button class="css--button disabled--button primary--button radius--button">Button</button></div>
      
      <div class="hint--top" aria-label="css--button disabled--button left--icon--button"><button class="css--button primary--button disabled--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>
      
      <div class="hint--top" aria-label="css--button disabled--button right--icon--button"><button class="css--button primary--button disabled--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>
      
      <div class="hint--top" aria-label="css--button disabled--button center--icon--button"><button class="css--button primary--button disabled--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>
      
      <div class="hint--top" aria-label="css--button primary--border--button disabled--button"><button class="css--button primary--border--button disabled--button">Button</button></div>
      
      <div class="hint--top" aria-label="css--button primary--border--button disabled--button radius--button"><button class="css--button primary--border--button disabled--button radius--button">Button</button></div>
      
      <div class="hint--top" aria-label="css--button primary--border--button disabled--button left--icon--button"><button class="css--button primary--border--button disabled--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>
      
      <div class="hint--top" aria-label="css--button primary--border--button disabled--button right--icon--button"><button class="css--button primary--border--button disabled--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>
      
      <div class="hint--top" aria-label="css--button primary--border--button disabled--button center--icon--button center--icon--button"><button class="css--button primary--border--button disabled--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>

      <div class="hint--top large--button--container" aria-label="css--button primary--button disabled--button large--button"><button class="css--button primary--button disabled--button large--button">Large Button</button></div>  

      <div class="hint--top large--button--container" aria-label="css--button primary--border--button disabled--button large--button"><button class="css--button primary--border--button disabled--button large--button">Large Button</button></div>  
      <!--   primary disabled -->

    </div>
    <!--   primary button -->


    <!--   secondary button -->
    <h3>Secondary Buttons</h3>
    <div class="css--buttons--container">

      <!--   secondary -->
      <div class="hint--top" aria-label="css--button secondary--button"><button class="css--button secondary--button">Button</button></div>  
      
      <div class="hint--top" aria-label="css--button secondary--button radius--button"><button class="css--button secondary--button radius--button">Button</button></div>  
      
      <div class="hint--top" aria-label="css--button secondary--button left--icon--button"><button class="css--button secondary--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>  
      
      <div class="hint--top" aria-label="css--button secondary--button right--icon--button"><button class="css--button secondary--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>  
      
      <div class="hint--top" aria-label="css--button secondary--button center--icon--button"><button class="css--button secondary--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>  

      <div class="hint--top" aria-label="css--button secondary--border--button"><button class="css--button secondary--border--button">Button</button></div>  

      <div class="hint--top" aria-label="css--button secondary--border--button radius--button"><button class="css--button secondary--border--button radius--button">Button</button></div>  

      <div class="hint--top" aria-label="css--button secondary--border--button left--icon--button"><button class="css--button secondary--border--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>  

      <div class="hint--top" aria-label="css--button secondary--border--button right--icon--button"><button class="css--button secondary--border--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>  

      <div class="hint--top" aria-label="css--button secondary--border--button center--icon--button"><button class="css--button secondary--border--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>  

      <div class="hint--top large--button--container" aria-label="css--button secondary--button large--button"><button class="css--button secondary--button large--button">Large Button</button></div>  

      <div class="hint--top large--button--container" aria-label="css--button secondary--border--button large--button"><button class="css--button secondary--border--button large--button">Large Button</button></div>  
      <!--   secondary -->
    
    </div>
    
    
    <h3>Secondary Disabled Buttons</h3>
    <div class="css--buttons--container">

      <!--   secondary disabled -->      
      <div class="hint--top" aria-label="css--button secondary--button disabled--button"><button class="css--button secondary--button disabled--button">Button</button></div>

      <div class="hint--top" aria-label="css--button secondary--button disabled--button radius--button"><button class="css--button secondary--button disabled--button radius--button">Button</button></div>

      <div class="hint--top" aria-label="css--button secondary--button disabled--button left--icon--button"><button class="css--button secondary--button disabled--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>
      
      <div class="hint--top" aria-label="css--button secondary--button disabled--button right--icon--button"><button class="css--button secondary--button disabled--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>
      
      <div class="hint--top" aria-label="css--button secondary--button disabled--button center--icon--button"><button class="css--button secondary--button disabled--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>
      
      <div class="hint--top" aria-label="css--button secondary--border--button disabled--button"><button class="css--button secondary--border--button disabled--button">Button</button></div>
      
      <div class="hint--top" aria-label="css--button secondary--border--button disabled--button radius--button"><button class="css--button secondary--border--button disabled--button radius--button">Button</button></div>
      
      <div class="hint--top" aria-label="css--button secondary--border--button disabled--button left--icon--button"><button class="css--button secondary--border--button disabled--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>
      
      <div class="hint--top" aria-label="css--button secondary--border--button disabled--button right--icon--button"><button class="css--button secondary--border--button disabled--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>
      
      <div class="hint--top" aria-label="css--button secondary--border--button disabled--button center--icon--button"><button class="css--button secondary--border--button disabled--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>

      <div class="hint--top large--button--container" aria-label="css--button secondary--button disabled--button large--button"><button class="css--button secondary--button disabled--button large--button">Large Button</button></div>  

      <div class="hint--top large--button--container" aria-label="css--button secondary--border--button disabled--button large--button"><button class="css--button secondary--border--button disabled--button large--button">Large Button</button></div>  
      <!--   secondary disabled -->

    </div>
    <!--   secondary button -->


    <!--   success button -->
    <h3>Success Buttons</h3>
    <div class="css--buttons--container">

      <!--   success -->
      <div class="hint--top" aria-label="css--button success--button"><button class="css--button success--button">Button</button></div>  
      
      <div class="hint--top" aria-label="css--button success--button radius--button"><button class="css--button success--button radius--button">Button</button></div>  

      <div class="hint--top" aria-label="css--button success--button left--icon--button"><button class="css--button success--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>  
      
      <div class="hint--top" aria-label="css--button success--button right--icon--button"><button class="css--button success--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>  
      
      <div class="hint--top" aria-label="css--button success--button center--icon--button"><button class="css--button success--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>  

      <div class="hint--top" aria-label="css--button success--border--button"><button class="css--button success--border--button">Button</button></div>  

      <div class="hint--top" aria-label="css--button success--border--button radius--button"><button class="css--button success--border--button radius--button">Button</button></div>  

      <div class="hint--top" aria-label="css--button success--border--button left--icon--button"><button class="css--button success--border--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>  

      <div class="hint--top" aria-label="css--button success--border--button left--icon--button"><button class="css--button success--border--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>  

      <div class="hint--top" aria-label="css--button success--border--button center--icon--button"><button class="css--button success--border--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>  

      <div class="hint--top large--button--container" aria-label="css--button success--button large--button"><button class="css--button success--button large--button">Large Button</button></div>  

      <div class="hint--top large--button--container" aria-label="css--button success--border--button large--button"><button class="css--button success--border--button large--button">Large Button</button></div>  
      <!--   success -->

    </div>
    
    
    <h3>Success Disabled Buttons</h3>
    <div class="css--buttons--container">
        
      <!--   success disabled -->
      <div class="hint--top" aria-label="css--button success--button disabled--button"><button class="css--button success--button disabled--button">Button</button></div>

      <div class="hint--top" aria-label="css--button success--button disabled--button radius--button"><button class="css--button success--button disabled--button radius--button">Button</button></div>

      <div class="hint--top" aria-label="css--button success--button disabled--button left--icon--button"><button class="css--button success--button disabled--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>

      <div class="hint--top" aria-label="css--button success--button disabled--button right--icon--button"><button class="css--button success--button disabled--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>

      <div class="hint--top" aria-label="css--button success--button disabled--button center--icon--button"><button class="css--button success--button disabled--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>
      
      <div class="hint--top" aria-label="css--button success--border--button disabled--button"><button class="css--button success--border--button disabled--button">Button</button></div>
      
      <div class="hint--top" aria-label="css--button success--border--button disabled--button radius--button"><button class="css--button success--border--button disabled--button radius--button">Button</button></div>
      
      <div class="hint--top" aria-label="css--button success--border--button disabled--button left--icon--button"><button class="css--button success--border--button disabled--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>
      
      <div class="hint--top" aria-label="css--button success--border--button disabled--button right--icon--button"><button class="css--button success--border--button disabled--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>
      
      <div class="hint--top" aria-label="css--button success--border--button disabled--button center--icon--button"><button class="css--button success--border--button disabled--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>

      <div class="hint--top large--button--container" aria-label="css--button success--button disabled--button large--button"><button class="css--button success--button disabled--button large--button">Large Button</button></div>  

      <div class="hint--top large--button--container" aria-label="css--button success--border--button disabled--button large--button"><button class="css--button success--border--button disabled--button large--button">Large Button</button></div>  
      <!--   success disabled -->
      
    </div>
    <!--   success button -->


    <!--   danger button -->
    <h3>Danger Buttons</h3>
    <div class="css--buttons--container">

      <!--   danger -->
      <div class="hint--top" aria-label="css--button danger--button"><button class="css--button danger--button">Button</button></div> 
      
      <div class="hint--top" aria-label="css--button danger--button radius--button"><button class="css--button danger--button radius--button">Button</button></div> 

      <div class="hint--top" aria-label="css--button danger--button left--icon--button"><button class="css--button danger--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div> 

      <div class="hint--top" aria-label="css--button danger--button right--icon--button"><button class="css--button danger--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div> 

      <div class="hint--top" aria-label="css--button danger--button center--icon--button"><button class="css--button danger--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div> 

      <div class="hint--top" aria-label="css--button danger--border--button"><button class="css--button danger--border--button">Button</button></div>    

      <div class="hint--top" aria-label="css--button danger--border--button radius--button"><button class="css--button danger--border--button radius--button">Button</button></div>    

      <div class="hint--top" aria-label="css--button danger--border--button left--icon--button"><button class="css--button danger--border--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>    

      <div class="hint--top" aria-label="css--button danger--border--button right--icon--button"><button class="css--button danger--border--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>    

      <div class="hint--top" aria-label="css--button danger--border--button center--icon--button"><button class="css--button danger--border--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>    

      <div class="hint--top large--button--container" aria-label="css--button danger--button large--button"><button class="css--button danger--button large--button">Large Button</button></div>  

      <div class="hint--top large--button--container" aria-label="css--button danger--border--button large--button"><button class="css--button danger--border--button large--button">Large Button</button></div>  
      <!--   danger -->

    </div>
    
    
    <h3>Danger Disabled Buttons</h3>
    <div class="css--buttons--container">
        
      <!--   danger disabled -->
      <div class="hint--top" aria-label="css--button danger--button disabled--button"><button class="css--button danger--button disabled--button">Button</button></div>
      
      <div class="hint--top" aria-label="css--button danger--button disabled--button radius--button"><button class="css--button danger--button disabled--button radius--button">Button</button></div>
      
      <div class="hint--top" aria-label="css--button danger--button disabled--button left--icon--button"><button class="css--button danger--button disabled--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>
      
      <div class="hint--top" aria-label="css--button danger--button disabled--button right--icon--button"><button class="css--button danger--button disabled--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>
      
      <div class="hint--top" aria-label="css--button danger--button disabled--button center--icon--button"><button class="css--button danger--button disabled--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>
      
      <div class="hint--top" aria-label="css--button danger--border--button disabled--button"><button class="css--button danger--border--button disabled--button">Button</button></div>
      
      <div class="hint--top" aria-label="css--button danger--border--button disabled--button radius--button"><button class="css--button danger--border--button disabled--button radius--button">Button</button></div>

      <div class="hint--top" aria-label="css--button danger--border--button disabled--button left--icon--button"><button class="css--button danger--border--button disabled--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>

      <div class="hint--top" aria-label="css--button danger--border--button disabled--button right--icon--button"><button class="css--button danger--border--button disabled--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>

      <div class="hint--top" aria-label="css--button danger--border--button disabled--button center--icon--button"><button class="css--button danger--border--button disabled--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>

      <div class="hint--top large--button--container" aria-label="css--button danger--button disabled--button large--button"><button class="css--button danger--button disabled--button large--button">Large Button</button></div>  

      <div class="hint--top large--button--container" aria-label="css--button danger--border--button disabled--button large--button"><button class="css--button danger--border--button disabled--button large--button">Large Button</button></div>  
      <!--   danger disabled -->

    </div>
    <!--   danger button -->


    <!--   warning button -->
    <h3>Warning Buttons</h3>
    <div class="css--buttons--container">
      
      <!--   warning bg -->
      <div class="hint--top" aria-label="css--button warning--button"><button class="css--button warning--button">Button</button></div>  

      <div class="hint--top" aria-label="css--button warning--button radius--button"><button class="css--button warning--button radius--button">Button</button></div>  

      <div class="hint--top" aria-label="css--button warning--button left--icon--button"><button class="css--button warning--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>  
      
      <div class="hint--top" aria-label="css--button warning--button right--icon--button"><button class="css--button warning--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>  

      <div class="hint--top" aria-label="css--button warning--button center--icon--button"><button class="css--button warning--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>  

      <div class="hint--top" aria-label="css--button warning--border--button"><button class="css--button warning--border--button">Button</button></div>

      <div class="hint--top" aria-label="css--button warning--border--button radius--button"><button class="css--button warning--border--button radius--button">Button</button></div>

      <div class="hint--top" aria-label="css--button warning--border--button left--icon--button"><button class="css--button warning--border--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>

      <div class="hint--top" aria-label="css--button warning--border--button right--icon--button"><button class="css--button warning--border--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>

      <div class="hint--top" aria-label="css--button warning--border--button center--icon--button"><button class="css--button warning--border--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>

      <div class="hint--top large--button--container" aria-label="css--button warning--button large--button"><button class="css--button warning--button large--button">Large Button</button></div>  

      <div class="hint--top large--button--container" aria-label="css--button warning--border--button large--button"><button class="css--button warning--border--button large--button">Large Button</button></div>  
      <!--   warning bg -->
  
    </div>
    
    
    <h3>Warning Disabled Buttons</h3>
    <div class="css--buttons--container">
      
      <!--   warning border -->
      <div class="hint--top" aria-label="css--button warning--button disabled--button"><button class="css--button warning--button disabled--button">Button</button></div>

      <div class="hint--top" aria-label="css--button warning--button disabled--button radius--button"><button class="css--button warning--button disabled--button radius--button">Button</button></div>

      <div class="hint--top" aria-label="css--button warning--button disabled--button left--icon--button"><button class="css--button warning--button disabled--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>

      <div class="hint--top" aria-label="css--button warning--button disabled--button right--icon--button"><button class="css--button warning--button disabled--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>      

      <div class="hint--top" aria-label="css--button warning--button disabled--button center--icon--button"><button class="css--button warning--button disabled--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>
      
      <div class="hint--top" aria-label="css--button warning--border--button disabled--button"><button class="css--button warning--border--button disabled--button">Button</button></div>
      
      <div class="hint--top" aria-label="css--button warning--border--button disabled--button radius--button"><button class="css--button warning--border--button disabled--button radius--button">Button</button></div>
      
      <div class="hint--top" aria-label="css--button warning--border--button disabled--button left--icon--button"><button class="css--button warning--border--button disabled--button left--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>
      
      <div class="hint--top" aria-label="css--button warning--border--button disabled--button right--icon--button"><button class="css--button warning--border--button disabled--button right--icon--button"><i class="fa fa-paper-plane-o"></i> Button</button></div>
      
      <div class="hint--top" aria-label="css--button warning--border--button disabled--button center--icon--button"><button class="css--button warning--border--button disabled--button center--icon--button"><i class="fa fa-paper-plane-o"></i></button></div>

      <div class="hint--top large--button--container" aria-label="css--button warning--button disabled--button large--button"><button class="css--button warning--button disabled--button large--button">Large Button</button></div>  

      <div class="hint--top large--button--container" aria-label="css--button warning--border--button disabled--button large--button"><button class="css--button warning--border--button disabled--button large--button">Large Button</button></div>  
      <!--   warning border -->

    </div>
    <!--   warning button   -->
  
    <!-- signature -->
    <div class="signature-wrapper">
      <div class="signature-title">
        Hey there, I'm Nitish, a frontend developer.
      </div>
      
      <a class="signature-link" target="_blank" href="https://nikkk.me/">Portfolio</a>
    </div>
    <!-- signature -->
  </div>
!

CSS 

              
                // demo style
@import url("https://fonts.googleapis.com/css?family=Roboto:400,500,700");
* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

body {
  font-family: 'Roboto', sans-serif;
  background: #121212;
}

h3 {
  text-align: center;
  margin: 70px 0 20px;
}

.main--container {
  border-radius: 10px;
  margin: 20px auto;
  padding: 40px;
  max-width: 800px;
  background: #ffffff;
}

.main--container .large--button--container {
  width: 43%;
  display: inline-block;
}

.css--buttons--title {
  font-size: 40px;
  text-align: center;
  margin: 20px 0 30px;
}

.css--buttons--container {
  text-align: center;
}

.css--buttons--container>div {
  margin: 20px;
}
// demo style


// button style
$button--white--color: #FFFFFF; 
$button--font--size: 15px;
$button--icon--padding--left--right: 20px; 
$button--default--bgcolor: #F7F7F7;
$button--default--color: #555555;
$button--primary--bgcolor: #5CCFE9;
$button--secondary--bgcolor: #5A68C6;
$button--success--bgcolor: #36C398;
$button--danger--bgcolor: #EE352E;
$button--warning--bgcolor: #FFD331;
$button--radius: 50px;

.css--button--icon--padding{
  padding-left: $button--icon--padding--left--right !important;
  padding-right: $button--icon--padding--left--right !important;
}

.css--button--background--hover--effect{
  background: transparent;
  box-shadow: 0px 0px 0px 1px inset;
}

// button style
.css--button{
  transition: background 300ms, color 300ms, box-shadow 300ms; 
  background: $button--default--bgcolor;
  font-size: $button--font--size;
  color: $button--default--color;
  -webkit-appearance: none;
  box-sizing: border-box;
  display: inline-block;
  vertical-align: middle;
  text-decoration: none;
  padding: 15px 30px;
  cursor: pointer;
  border-width: 0;
  outline: none;
  border-radius: 2px;
  
  &:hover{
    @extend .css--button--background--hover--effect;
  }
}

// button icon
.css--button i{
  vertical-align: middle;
}

// button border
.border--button{
  background: transparent;
  box-shadow: 0px 0px 0px 1px inset;
}

// button disabled
.disabled--button{
  pointer-events: none;
  opacity: 0.5;
}

// button radius
.radius--button{
  border-radius: $button--radius;
}

// button default border
.default--border--button{
  @extend .border--button;
  
  &:hover{
    background: $button--default--bgcolor;
    box-shadow: 0px 0px 0px 1px $button--default--bgcolor inset;
  }
}

// button center icon
.center--icon--button{
  @extend .css--button--icon--padding;
}

// button left icon
.left--icon--button{
  @extend .css--button--icon--padding;
  > i{
    margin-right: 5px;
  }
}

// button right icon
.right--icon--button{
  @extend .css--button--icon--padding;
  direction: rtl;
  > i{
    margin-left: 5px;
  }
}

// button large
.large--button{
  display: block;
  width: 100%;
}

// primary button
.primary--button{
  background: $button--primary--bgcolor;
  color: $button--white--color;

  &:hover{
    @extend .css--button--background--hover--effect;
    color: $button--primary--bgcolor;
  }
}

.primary--border--button{
  @extend .border--button;
  color: $button--primary--bgcolor;
  
  &:hover{
    background: $button--primary--bgcolor;
    color: $button--white--color;
    box-shadow: 0px 0px 0px 1px $button--primary--bgcolor inset;
  }
}

// secondary button
.secondary--button{
  background: $button--secondary--bgcolor;
  color: $button--white--color;

  &:hover{
    @extend .css--button--background--hover--effect;
    color: $button--secondary--bgcolor;
  }
}

.secondary--border--button{
  @extend .border--button;
  color: $button--secondary--bgcolor;

  &:hover{
    background: $button--secondary--bgcolor;
    color: $button--white--color;
    box-shadow: 0px 0px 0px 1px $button--secondary--bgcolor inset;
  }
}

// success button
.success--button{
  background: $button--success--bgcolor;
  color: $button--white--color;
  
  &:hover{
    @extend .css--button--background--hover--effect;
    color: $button--success--bgcolor;
  }
}

.success--border--button{
  @extend .border--button;
  color: $button--success--bgcolor;

  &:hover{
    background: $button--success--bgcolor;
    color: $button--white--color;
    box-shadow: 0px 0px 0px 1px $button--success--bgcolor inset;
  }
}

// danger button
.danger--button{
  background: $button--danger--bgcolor;
  color: $button--white--color;
  
  &:hover{
    @extend .css--button--background--hover--effect;
    color: $button--danger--bgcolor;
  }
}

.danger--border--button{
  @extend .border--button;
  color: $button--danger--bgcolor;

  &:hover{
    background: $button--danger--bgcolor;
    color: $button--white--color;
    box-shadow: 0px 0px 0px 1px $button--danger--bgcolor inset;
  }
}

// warning button
.warning--button{
  background: $button--warning--bgcolor;
  color: $button--white--color;

  &:hover{
    @extend .css--button--background--hover--effect;
    color: $button--warning--bgcolor;
  }
}

.warning--border--button{
  @extend .border--button;
  color: $button--warning--bgcolor;

  &:hover{
    background: $button--warning--bgcolor;
    color: $button--white--color;
    box-shadow: 0px 0px 0px 1px $button--warning--bgcolor inset;
  }
}
// button style

// signature
.signature-wrapper {
  margin-top: 150px;
  margin-bottom: 100px;
  text-align: center;
  
  .signature-title {
    font-size: 16px;
    letter-spacing: 1px;
    font-weight: normal;
  }
  
  .signature-link {
    color: #f36e2e;
    display: inline-block;
    margin: 20px 0 10px;
    font-size: 13px;
    letter-spacing: 0.5px;
    text-decoration: none;
    border-bottom: solid 2px #ddd 
  }
}
!

JS
!
999px

Console