Pen Settings



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


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


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.


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.

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.


                <body id="body"> <!-- body will be the .nav-button target -->

<aside class="sidebar">
  <nav id="navigation" role="navigation">
    <a href="#">Salade</a>
    <a href="#">Tomate</a>
    <a href="#">Oignons</a>
    <a href="#">Choucroute</a>
    <a href="#">Picon bière</a>
    <a href="#">Kouglopf</a>
<!-- /sidebar -->

<div class="wrapper">
  <a href="#body" class="nav-button-open" aria-label="open navigation"></a>
  <a href="#" class="nav-button-close" aria-label="close navigation"></a>
  <header class="header">
    <h1>Push top CSS Nav</h1>

  <div class="main">
    <h2>partie "main"</h2>
    <p>Navigation "off Canvas" basée sur :</p>
      <li>CSS pour la décoration du lien-bouton (via linear-gradients)</li>
      <li>CSS pour l'évément du "touch" (via :target)</li>
      <li>CSS pour la transition</li>
    <p>Le principe général est celui-ci :</p>
      <li>Sur grand écran (mini 768), "sidebar" est simplement placé en haut de "wrapper".</li>
      <li>Sur petit écran (maxi 767), "sidebar" passe en position absolute, "wrapper" est décalé en translation par dessus "sidebar".</li>
    <p>Pré-requis :</p>
      <li>body doit avoir un id pour être ciblé par l'ancre</li>

  <footer class="footer">
    <p>My <b>footer</b>
<!-- /wrapper -->


                /* wrapper styles */
.wrapper {
  position: relative;
  min-height: 100vh;

/* small screens styles */
@media (max-width: 767px) {
  .sidebar {
    position: absolute;
    top: 0; left: 0; right: 0;
  /* navigation styles */
  nav {
    -webkit-columns: 2;
    -moz-columns: 2;
    -ms-columns: 2;
    columns: 2;
    -webkit-column-gap: 2px;
    -moz-column-gap: 2px;
    -ms-column-gap: 2px;
    column-gap: 2px;
    padding: 2px;
  nav > a {
    display: inline-block;
    width: 100%;
    height: 6rem;
    line-height: 6rem;
    padding-left: 1rem;
  .wrapper {
    transform: translateX(0) translateZ(0);
    transition: transform .2s;
    will-change: transform;

  /* button deco */
  [class^="nav-button"] {
    display: block;
    z-index: 1;
    height: 3.5rem; width: 3.5rem;
    background-color: transparent;
    background-image: linear-gradient(to right, #333, #333),
      linear-gradient(to right, #333, #333),
      linear-gradient(to right, #333, #333);
    background-position: center top, center, center bottom;
    background-repeat: no-repeat;
    background-size: 3.5rem .9rem;
    padding: 0;
    outline: 0;
    border: 0;
    cursor: pointer;
  /* here's goes the push top effect */
  body:target .wrapper {
    transform: translateY(19rem); /* based on navigation's height */
  body:target .nav-button-open {
    display: none;
  body:target .nav-button-close {
    display: block;
} /* end of small screen media queries */

/* Global deco */
* {
  box-sizing: border-box;
html {
  font-size: 62.5%;
body {
  margin: 0;
  padding: 0;
  color: #fff;
  font-size: 1.6em;
  font-family: arial, sans-serif;
a {
  color: #fff;
.wrapper {
  padding: 2rem;
  background-color: #eee;
  color: #333;
.sidebar {
  background: #333;
  color: #ddd;
nav a {
  margin-bottom: 2px;
  text-decoration: none;
  background: rgba(255,255,255, 0.1);