css Audio - Active file-generic CSS - Active Generic - Active HTML - Active JS - Active SVG - Active Text - Active file-generic Video - Active header Love html icon-new-collection icon-person icon-team numbered-list123 pop-out spinner split-screen star tv

Pen Settings

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.

Learn more · Versions

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.

!
Insecure Resource

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

About CSS Preprocessors

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

Learn more · Versions

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 URL's added here will be added as <link>s in order, and before the CSS in the editor. If you link to another Pen, it will include the CSS from that Pen. If the preprocessor matches, it will attempt to combine them before processing.

Powered by Algolia
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.

If the stylesheet 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 CSS 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.

Learn more

+ add another resource

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient. For instance, CoffeeScript can help prevent easy-to-make mistakes and offer a cleaner syntax and Babel can bring ECMAScript 6 features to browsers that only support ECMAScript 5.

Learn more · Versions

You're using npm packages, so we've auto-selected Babel for you here, which we require to process imports and make it all work. If you need to use a different JavaScript preprocessor, remove the packages in the npm tab.

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.

Powered by Algolia
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.

Learn more

+ add another resource

Use npm Packages

We can make npm packages available for you to use in your JavaScript. We use webpack to prepare them and make them available to import. We'll also process your JavaScript with Babel.

⚠️ This feature can only be used by logged in users.

Code Indentation

     

Save Automatically?

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.

HTML Settings

Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

Next Step Leave tour

HTML

            
              <header>
  <a href="#main-menu"
     id="main-menu-toggle"
     class="menu-toggle"
     aria-label="Open main menu">
    <span class="sr-only">Open main menu</span>
    <span class="fa fa-bars" aria-hidden="true"></span>
  </a>
  
  <h1 class="logo">hamburgers</h1>
  
  <nav id="main-menu" class="main-menu" aria-label="Main menu">
    <a href="#main-menu-toggle"
       id="main-menu-close"
       class="menu-close"
       aria-label="Close main menu">
      <span class="sr-only">Close main menu</span>
      <span class="fa fa-close" aria-hidden="true"></span>
    </a>
    <ul>
      <li><a href="#">Products</a></li>
      <li><a href="#">About</a></li>
      <li><a href="#">Contact</a></li>
    </ul>
  </nav>
  <a href="#main-menu-toggle"
     class="backdrop"
     tabindex="-1"
     aria-hidden="true" hidden></a>
</header>

<!--
 Demo purposes only.
 Lots of text = scroll testing!
-->
<article>
  <h2>Hamburgers are delicious</h2>
  <p>Even better is bacon...ipsum dolor amet kielbasa sirloin pancetta andouille biltong jowl brisket corned beef turducken flank. Andouille corned beef shank tongue leberkas turducken cow pork chop salami bresaola frankfurter shankle. Pork belly porchetta prosciutto, pancetta meatloaf cow frankfurter pork chuck biltong boudin ball tip ham. Corned beef pig beef ribs burgdoggen.</p>

  <p>Flank jerky tri-tip strip steak tail biltong. Tongue chicken burgdoggen, leberkas ham hock landjaeger sausage cupim shankle strip steak ribeye tenderloin jowl. Pork drumstick flank pork loin, tenderloin chuck pastrami kielbasa brisket kevin cow swine strip steak. Picanha shoulder t-bone burgdoggen, alcatra tongue tail ham hock bacon meatloaf rump shankle. Boudin ham leberkas burgdoggen ground round short ribs chicken pancetta meatloaf picanha t-bone. Short loin rump strip steak, short ribs cupim tongue pancetta flank ball tip tail.</p>

  <p>Alcatra jowl biltong kevin, shankle ham hock sausage turducken andouille. Ribeye prosciutto turkey flank, picanha kielbasa ball tip. Shoulder tenderloin bresaola, corned beef boudin capicola burgdoggen t-bone bacon short loin hamburger drumstick. Beef pork belly biltong sausage jerky picanha frankfurter boudin beef ribs cupim capicola salami. Biltong alcatra sirloin, kevin frankfurter short loin doner beef ribs landjaeger sausage venison. Shoulder t-bone ham hock pig.</p>

  <p>Brisket beef spare ribs, pastrami pancetta bresaola pig short loin flank t-bone. Porchetta biltong filet mignon pork loin picanha shank kielbasa boudin sausage alcatra. Ball tip bresaola salami tail meatloaf shoulder short ribs pancetta pork loin venison, picanha tongue pig turkey. Rump filet mignon sausage ribeye biltong. Short ribs pork chop corned beef, venison kevin pork loin tail strip steak ham hock porchetta.</p>

  <p>Cow beef ribs ham hock ball tip bacon pork belly. Shank beef tenderloin landjaeger. Pork loin shank drumstick ball tip, turkey pig ground round kevin t-bone chicken. Ham hock chicken ribeye jowl pork belly bresaola. Sausage leberkas landjaeger ham pork belly bresaola short ribs burgdoggen shank jowl capicola kielbasa swine. Pork belly leberkas boudin tail. Pork chop cow leberkas tenderloin corned beef, shankle ham hock cupim tail chuck jerky rump.</p>
</article>
!

CSS

            
              /* Screen reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* Button styling */
.menu-toggle {
  display: inline-block;
  padding: .75em 15px;
  line-height: 1em;
  font-size: 1em;
  color: #333;
}

.menu-toggle:hover,
.menu-toggle:focus {
  color: #c00;
}

/*
 Default styles + Mobile first
 Offscreen menu style
*/
.main-menu {
  position: absolute;
  display: none;
  left: -200px;
  top: 0;
  height: 100%;
	overflow-y: scroll;
	overflow-x: visible;
	transition: left 0.3s ease,
				      box-shadow 0.3s ease;
	z-index: 999;
}

.main-menu ul {
  list-style: none;
  margin: 0;
  padding: 2.5em 0 0;
  /* Hide shadow w/ -8px while 'closed' */
  -webkit-box-shadow: -8px 0 8px rgba(0,0,0,.5);
     -moz-box-shadow: -8px 0 8px rgba(0,0,0,.5);
          box-shadow: -8px 0 8px rgba(0,0,0,.5);
  min-height: 100%;
  width: 200px;
  background: #1a1a1a;
}

.main-menu a {
  display: block;
  padding: .75em 15px;
  line-height: 1em;
  font-size: 1em;
  color: #fff;
  text-decoration: none;
  border-bottom: 1px solid #383838;
}

.main-menu li:first-child a {
  border-top: 1px solid #383838;
}

.main-menu a:hover,
.main-menu a:focus {
  background: #333;
  text-decoration: underline;
}

.main-menu .menu-close {
  position: absolute;
  right: 0;
  top: 0;
}

/*
 On small devices, allow it to toggle...
*/
/*
 :target for non-JavaScript
 [aria-expanded] will be used if/when JavaScript is added to improve interaction, though it's completely optional.
*/
.main-menu:target,
.main-menu[aria-expanded="true"] {
  display: block;
  left: 0;
  outline: none;
  -moz-box-shadow: 3px 0 12px rgba(0,0,0,.25);
  -webkit-box-shadow: 3px 0 12px rgba(0,0,0,.25);
  box-shadow: 3px 0 12px rgba(0,0,0,.25);
}

.main-menu:target .menu-close,
.main-menu[aria-expanded="true"] .menu-close {
  z-index: 1001;
}

.main-menu:target ul,
.main-menu[aria-expanded="true"] ul {
  position: relative;
  z-index: 1000;
}

/* 
 We could us `.main-menu:target:after`, but
 it wouldn't be clickable.
*/
.main-menu:target + .backdrop,
.main-menu[aria-expanded="true"] + .backdrop{
  position: absolute;
  display: block;  
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 998;
  background: #000;
  background: rgba(0,0,0,.85);
  cursor: default;
}

@supports (position: fixed) {
  .main-menu,
  .main-menu:target + .backdrop,
  .main-menu[aria-expanded="true"] + .backdrop{
    position: fixed;
  }
}

/*
 Larger screen styling
 Horizontal menu
*/
@media (min-width: 768px) {
  .menu-toggle,
  .main-menu .menu-close {
    display: none;
  }
  
  /* Undo positioning of off-canvas menu */
  .main-menu {
    position: relative;
		left: auto;
		top: auto;
		height: auto;
    display: block;
  }
  
  .main-menu ul {
    display: flex;
    
    /* Undo off-canvas styling */
    padding: 0;
    -webkit-box-shadow: none;
       -moz-box-shadow: none;
            box-shadow: none;
    height: auto;
    width: auto;
    background: none;
  }
  
  .main-menu a {
    color: #06c;
    border: 0 !important; /* Remove borders from off-canvas styling */
  }
  
  .main-menu a:hover,
  .main-menu a:focus {
    background: none; /* Remove background from off-canvas styling */
    color: #c00;
  }
}

/*
 Demo purposes only
*/
*,
*:before,
*:after {
  box-sizing: border-box;
}

header {
  padding: 20px;
  display: flex;
  align-items: baseline;
}

article {
  padding: 30px;
  max-width: 55em;
  font-size: 16px;
  line-height: 1.5em;
}

article h2 {
  font-weight: 500;
  font-size: 28px;
}

.logo {
  margin: 0 30px 0 10px;
  font-size: 1.5em;
}
!

JS
!
999px
🕑 One or more of the npm packages you are using needs to be built. You're the first person to ever need it! We're building it right now and your preview will start updating again when it's ready.
Loading ..................

Console