html, body {
  font-family: sans-serif;
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

body > .content > .page,
body > .content  {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: auto;
  height: auto;
  z-index: 2;
  -webkit-overflow-scrolling: touch;

  -webkit-transition:
    all 0.2s ease
  ;
  -moz-transition:
    all 0.2s ease
  ;
  -o-transition:
    all 0.2s ease
  ;
  -ms-transition:
    all 0.2s ease
  ;
  transition:
    all 0.2s ease
  ;

  backface-visibility:hidden;
  -webkit-backface-visibility:hidden; /* Chrome and Safari */
  -moz-backface-visibility:hidden; /* Firefox */
  -ms-backface-visibility:hidden; /* Internet Explorer 10+ */

  -webkit-transform: translate3d(0, 0, 0);
     -moz-transform: translate3d(0, 0, 0);
      -ms-transform: translate3d(0, 0, 0);
       -o-transform: translate3d(0, 0, 0);
          transform: translate3d(0, 0, 0);
}
body > .content > .page {
  overflow: auto;
}

body > .content.drag {
  -webkit-transition: none;
  -moz-transition: none;
  -o-transition: none;
  -ms-transition: none;
  transition: none;
}

.drawers {
  position: absolute;
  background-color: #2D2D2D;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: auto;
  height: auto;

}

.drawer {
  position: absolute;
  top: 0;
  right: auto;
  bottom: 0;
  left: auto;
  width: 275px;
  height: auto;
  overflow: auto;
  
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;

  -webkit-overflow-scrolling: touch;
  -webkit-transition: width 0.3s ease;
     -moz-transition: width 0.3s ease;
      -ms-transition: width 0.3s ease;
       -o-transition: width 0.3s ease;
          transition: width 0.3s ease;
}

.drawer.left {
  left: 0;
  z-index: 1;
}

.drawer.right {
  right: 0;
  z-index: 1;
}