#main {
    height: 100%;
    margin: 0 0 0 16em;
    padding: 1em 1em 1em 2em;
    background: #fff;
    border-left: 2px solid black;
  }

  /**************** menu coding *****************/
  #wrapper {
    height: 100%;
    background: #ccffcc;
  }
  #menu {
    float: left;
    width: 14em;
    padding: 1em 1em 1em 1em;
    background: #ccffcc;
  }
  #menu ul {
    list-style: none;
    margin: 0;
    padding: 0;
  }
  #menu a, #menu h2 {
    font: bold 13px/16px arial, helvetica, sans-serif;
    display: block;
    border-width: 1px;
    border-style: solid;
    border-color: #ccc #888 #555 #bbb;
    margin: 0;
    padding: 5px 8px;
  }
  #menu h2 {
    color: #fff;
    background: #000;
    text-transform: uppercase;
  }
  #menu a {
    color: #000;
    background: #eeffee;
    text-decoration: none;
  }
  #menu a:hover {
    color: #a00;
    background: #fff;
  }
  #menu li {
    position: relative;
  }
  #menu ul ul ul {
    position: absolute;
    top: 0;
    left: 100%;
    width: 100%;
  }

  div#menu ul ul ul,div#menu ul ul li:hover ul ul {
    display: none;
  }

  div#menu ul ul li:hover ul,div#menu ul ul ul li:hover ul {
    display: block;
  }