@media screen {
      body {
        margin: 0px;
        padding: 0px;
        font-family: Arial, Helvetica, sans-serif;
      }
      #current {
        margin:auto;
        width:90%;
        padding: 10px;
        display: none;
      }
      .hidden {
          display: none;
      }
      #container {
        width : 90%;
        height: 90%;
        margin: 8px auto;
      }
      div.heading {
        width: 90%;
        margin: auto;
        padding: 10px;
      }
}