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HTML

              
                <div id="wrapper">
  <div id="info">
    <div id="info-content">
      <h1>Multi level <strong>CSS-only push menu</strong></h1>
      <p>&lt;noscript&gt;No javascript required&lt;/noscript&gt;</p>
    </div>
  </div>

  <input type="checkbox" id="menu" name="menu" class="menu-checkbox">
  <div class="menu">
    <label class="menu-toggle" for="menu"><span>Toggle</span></label>
    <ul>
      <li>
        <a href="#">Menu-1</a>
      </li>
      <li>
        <a href="#">Menu-2</a>
      </li>
      <li>      
        <label for="menu-3">Menu-3</label>
        <input type="checkbox" id="menu-3" name="menu-3" class="menu-checkbox">
        <div class="menu">
          <label class="menu-toggle" for="menu-3"><span>Toggle</span></label>
          <ul>
            <li>
              <a href="#">Menu-3-1</a>
            </li>
            <li>
              <label for="menu-3-2">Menu-3-2</label>
              <input type="checkbox" id="menu-3-2" name="menu-3-2" class="menu-checkbox">
              <div class="menu">
                <label class="menu-toggle" for="menu-3-2"><span>Toggle</span></label>
                <ul>
                  <li>
                    <a href="#">Menu-3-2-1</a>
                  </li>
                  <li>
                    <a href="#">Menu-3-2-2</a>
                  </li>
                  <li>
                    <label for="menu-3-2-3">Menu-3-2-3</label>
                    <input type="checkbox" id="menu-3-2-3" name="menu-3-2-3" class="menu-checkbox">
                    <div class="menu">
                      <label class="menu-toggle" for="menu-3-2-3"><span>Toggle</span></label>
                      <ul>
                        <li>
                          <a href="#">Menu-3-2-3-1</a>
                        </li>
                        <li>
                          <a href="#">Menu-3-2-3-2</a>
                        </li>
                        <li>
                          <a href="#">Menu-3-2-3-3</a>
                        </li>
                        <li>
                          <a href="#">Menu-3-2-3-4</a>
                        </li>
                      </ul>
                    </div>
                  </li>
                  <li>
                    <a href="#">Menu-3-2-4</a>
                  </li>
                </ul>
              </div>
            </li>
            <li>
              <a href="#">Menu-3-3</a>
            </li>
            <li>
              <a href="#">Menu-3-4</a>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <label for="menu-4">Menu-4</label>
        <input type="checkbox" id="menu-4" name="menu-4" class="menu-checkbox">
        <div class="menu">
          <label class="menu-toggle" for="menu-4"><span>Toggle</span></label>
          <ul>
            <li>
              <a href="#">Menu-4-1</a>
            </li>
            <li>
              <a href="#">Menu-4-2</a>
            </li>
            <li>
              <a href="#">Menu-4-3</a>
            </li>
            <li>
              <a href="#">Menu-4-4</a>
            </li>
          </ul>
        </div>
      </li>      
      <li>
        <label for="menu-5">Menu-5</label>
        <input type="checkbox" id="menu-5" name="menu-5" class="menu-checkbox">
        <div class="menu">
          <label class="menu-toggle" for="menu-5"><span>Toggle</span></label>
          <ul>
            <li>
              <a href="#">Menu-5-1</a>
            </li>
            <li>
              <a href="#">Menu-5-2</a>
            </li>
            <li>
              <a href="#">Menu-5-3</a>
            </li>
            <li>
              <a href="#">Menu-5-4</a>
            </li>
          </ul>
        </div>
      </li>
      <li>
        <a href="#">Menu-6</a>
      </li>
    </ul>
  </div>
</div><!-- #wrapper -->

              
            
!

CSS

              
                /* reset */
*
  margin: 0
  padding: 0

#wrapper
  position: absolute
  width: 100%
  height: 100%
  overflow: hidden

label
  cursor: pointer
  &:focus
    outline: none
    
.menu
  position: absolute
  top: 0
  left: 0
  background: #fff
  width: 240px
  height: 100%
  transform: translate3d(-240px, 0, 0)
  transition: transform 0.35s
      
  label.menu-toggle  
    position: absolute    
    right: -60px
    width: 60px
    height: 60px
    line-height: 0px    
    display: block
    padding: 0
    text-indent: -9999px
    background: #fff url(https://cdn4.iconfinder.com/data/icons/wirecons-free-vector-icons/32/menu-alt-512.png) 50% 50% / 25px 25px no-repeat
  
  ul
    li
      > label
        background: url(https://cdn4.iconfinder.com/data/icons/ionicons/512/icon-arrow-right-b-128.png) 95% 50% / 16px 16px no-repeat
      a, label
        display: block
        text-align: center
        padding: 0 20px
        line-height: 60px
        text-decoration: none
        color: #000
        &:hover
          color: #666

/* hide inputs */          
.menu-checkbox
  display: none

/* hide navigation icon for sublabels */    
.menu .menu label.menu-toggle
  background: none
    
/* fade in checked menu */    
.menu-checkbox:checked + .menu
  transform: translate3d(0, 0, 0)

    
    
/* for show */
html, body
  height: 100%

body
  background: url(https://37.media.tumblr.com/f6c67ec2821a91051e4175f8a102e1e2/tumblr_n6rzpcsMk41st5lhmo1_1280.jpg) 50% 50% / cover

p
  margin-bottom: 15px

#info
  display: table
  background: rgba(0,0,0,0.4)
  height: 100%
  width: 100%
  #info-content
    display: table-cell
    vertical-align: middle
    text-align: center
    text-transform: uppercase
    color: #fff
    font-size: 12px
    h1      
      color: #fff
      border: 3px solid #fff
      text-align: center
      background: rgba(0,0,0,0.1)
      font-size: 22px
      font-weight: normal
      padding: 20px
      margin: 10px
      display: inline-block      
      strong
        display: block
        font-size: 26px
   
  
              
            
!

JS

              
                
              
            
!
999px

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