Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

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.

+ add another resource

JavaScript

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.

+ add another resource

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.

Behavior

Auto Save

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

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

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML

              
                  <article class="demo-desc">
  <h1>Sass flat-button generator</h1>
  <p>A Sass mixin that creates flat buttons with custom icons in variable positions. Follow me
    <a href='https://twitter.com/awesomephant'>@awesomephant</a> for updates.
  </p>
</article>
<section class='demo'>
<a href='#' class='danger'>Delete that thing.</a>  
<a href='#' class='power'>Turn on the energy.</a>  
<a href='#' class='signup'>Sign Up</a>
<a href='#' class='save'>Save</a>
<a href='#' class='fb'>Like us on Facebook</a>
<a target='blank' href='https://twitter.com/awesomephant' class='twitter'>Follow me @awesomephant!</a>
</section>
<article class='demo-desc'>
<h2>Features</h2>
  <ul>
    <li>Variable background color</li>
    <li>Custom icons left or right of the text</li>
    <li>No extra markup, uses pseudo-elements.</li>
    <li>Optional rounded corners</li>
  </ul>
  <h2>Usage</h2>
  <code>
    <pre>
 // Arguments: background-color; rounded-corners, icon, icon-position     
.signup  { @include button($blue, false, 'tick', left)  ;}</pre>
  </code>
</article>
              
            
!

CSS

              
                @import "compass/css3";

@import url(http://weloveiconfonts.com/api/?family=entypo);

/*
================
The Icon-object™
================

The Icon-Object™ that holds the unicode entities for our icons, so we can reference them by name instead of looking up the hex code every time we need one.
*/

$icons: ('save' '\1F4BE'),
        ('delete' '\12as'),
        ('fb' '\F30E'),
        ('twitter' '\F309'),
        ('bolt' '\26A1'),
        ('danger' '\26A0'),
        ('tick' '\2713');
;

/*
Color variables are imported from another pen, just to make stuff easier to read
*/


/*
=======================
The Button Mixin.======
=======================

=It takes 3 arguments:=
- the background-color ($bg),
in our case we will pass it the color vars we defined above.

- the icon ($icon),
takes one of the named icons from the Icon-Object™

- the icon position ($iconPosition)
Vald values are 'left' and 'right'

=And does fancy stuff=
1. Figure out the lightness of the passed background-color via the lightness() function and set either a dark or a light text color.

2. Loop over the Icon-Object™ until the name matches the passed $icon parameter and then

  2.1 If $iconPosition == right select the :after element and set the corresponding unicode entity as the 'content' value. 
*/

@mixin button($bg, $rounded: false, $icon:none, $iconPosition: right){
  $color: black;
  padding: 1.2em 2.3em;
  /*
  Setting the color based on the background, as described above (1)
  */ 
  @if lightness($bg) > 68% {
    $color: desaturate(darken($bg, 35), 70);
    &:hover, &:focus {
      background: darken($bg, 5);
      color: darken($color, 5);
    }
  }
  @else {
    $color: lighten($bg, 35);
    &:hover, &:focus {
      background: darken($bg, 5);
      color: lighten($color, 5);
    }
  }
  
  /*
  Adding the icons, see (2)
  */
  @each $thing in $icons{
    @if nth($thing, 1) == $icon {
      @if $iconPosition == right {  
        padding-right: 3.5em;   
        &:after {
           content: nth($thing, 2);
           right: 1.5em;
        }
      }
       
      @if $iconPosition == left {  
        padding-left: 3.5em;     
        &:before {
           content: nth($thing, 2);
           left: 1.5em;
        }
      }
    }
  }
  
  color: $color;
  display: inline-block;
  background: $bg;
  @include transition(.3s);
  font:{
    family: sans-serif;
    weight: 800;
    size: .8em;
  }
  text:{
    transform: uppercase;
    decoration: none;
  }
  @if $rounded == true {border-radius: .7em};
  border-bottom: .2em solid darken($bg, 7);
  position: relative;
      
  &:before, &:after{
    display: inline-block;
    font-family: entypo;
    position: absolute;    
  }
          
  &:active {
    @include transform(scale(.92));
  }
  &:hover, &:focus {
            @if $rounded == true {border-radius: .5em;}
    box-shadow: 0 0 0 5px lighten($bg, 20);
  }
}

/*
Calling the Mixin for the different buttons
*/
.danger  { @include button($red, false, 'danger')   ;}
.signup  { @include button($blue, false, 'tick', left)  ;}
.save    { @include button($green, false, 'save', right);}
.fb      { @include button($fb-blue, false, 'fb', left); }
.twitter { @include button($twitter-blue, false,        'twitter', left); }
.power { @include button($yellow, 'bolt', right); }

/*
Base Styles
*/
.demo a {margin: 1em;}
              
            
!

JS

              
                
              
            
!
999px

Console