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              <header class="header">
  <h1>Slide left CSS Nav</h1>
</header>

<nav id="navigation" role="navigation">
  <input type="checkbox" id="toggle-nav" aria-label="open/close navigation">
  <label for="toggle-nav" class="nav-button"></label>
  <div class="nav-inner">
    <a href="#">Salade</a>
    <a href="#">Tomate</a>
    <a href="#">Oignons</a>
    <a href="#">Choucroute</a>
    <a href="#">Picon bière</a>
  </div>
</nav>

<div class="main">
  <h2>partie "main"</h2>
  <p>Navigation "off Canvas" basée sur :</p>
    <ul>
      <li>CSS pour la décoration du lien-bouton (via linear-gradients)</li>
      <li>CSS pour l'évément du "touch" (via :checked)</li>
      <li>CSS pour la transition</li>
    </ul>
</div>

<footer class="footer">
  <p>My <b>footer</b>
  </p>
</footer>
            
          
!
            
              /* Responsive Navigation styles begin here */

nav > input,
.nav-button {
  display: none; /* hidden on large screens */
}

/* small screens styles */
@media (max-width: 767px) {
 .nav-inner {
   position: absolute;
   width: 70vw;  
   transform: translateX(-100%) translateZ(0);
   transition: transform .2s;
   will-change: transform;
  }
  /* here's goes the slide effect */
  input:checked ~ .nav-inner {
    transform: translateX(0);
  }

  /* Button deco */
  .nav-button {
    display: block;
    position: absolute;
    top: 1rem; right: 1rem;
    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;
    -webkit-tap-highlight-color:rgba(0,0,0,0);
  }
}

/* Global deco */
* {
  box-sizing: border-box;
}
html {
  font-size: 62.5%;
}
body {
  margin: 0;
  padding: 0;
  font-size: 1.6em;
  font-family: arial, sans-serif;
}
a {
  color: #fff;
}
nav a {
  display: block;
  padding: .7em;
  margin-bottom: 2px;
  text-decoration: none;
  background: #777;
}
h1 {
  margin-left: 1rem;
  color: #333;
}
.main, footer {
  padding: 2rem;
  background-color: #eee;
  color: #333;
}


            
          
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