503961-2.html - mozsearch

Enable keyboard shortcuts

<html>

<head>

  <style>

    #colset { column-count: 3; }

    #a { height: 0;   }

    #x { height: 3px; }

    #b { height: 0;   }

    #c { height: 2px; }

    #d { height: 2px; }

    /* Following style is just for visualization -- doesn't affect assertion */

    #colset { column-gap: 0px; width: 18px; }

    div { width: 5px;         }

    #a  { background: purple; }

    #x  { background: orange; }

    #b  { background: blue;   }

    #c  { background: black;  }

    #d  { background: lime;   }

  </style>

  <script>

    function boom()

      document.getElementById("a").style.height = "auto";

      document.getElementById("c").style.height = "0";

  </script>

</head>

<body onload="boom()" id="colset"

  ><div id="a"><div id="x"></div></div

  ><div id="b"><div id="c"></div><div id="d"></div></div

></body>

</html>