html {
    overflow: hidden;
  }
  body {
    background: #222;
    left: 0px;
    top: 0px;
    width: 100%;
    height: 100%;
    margin: 0px;
    padding: 0px;
    color: #fff;
    font-family: verdana, arial, helvetica, sans-serif;
    filter: alpha(opacity=100);
  }
  #screen {
    position:absolute;
    left: 10%;
    top: 10%;
    width: 80%;
    height: 80%;
    overflow: hidden;
    background: #000;
  }
  #grid {
    position:absolute;
  }
  #grid img {
    position: absolute;
    cursor: pointer;
    left: -10000px;
  }
  #grid .over {
    border: #fff solid;
  }
  #notice {
    position: absolute;
    font-size: 0.7em;
    left: 1em;
    top: 1em;
    width: 15em;
    background: #000;
    filter: alpha(opacity=70);
    opacity: 0.7;
    cursor: help;
    padding: 0.2em;
  }
  #notice span {
    color: #f80;
  }
  #title {
    position: absolute;
    font-size: 1em;
    left: 0px;
    bottom: 90%;
    width: 100%;
    font-weight: bold;
    text-align: center;
    color: #fff;
  }
  #caption {
    position: absolute;
    font-size: 1em;
    left: 0px;
    top: 90%;
    width: 100%;
    font-weight: bold;
    text-align: center;
    color: #fff;
  }