style.css

 html,
 body {
     height: 100%;
     width: 100%;
     margin: 0;
 }
 #contain {
     width: 100%;
     height: 100%;
     margin: 0;
 }
 #map {
     margin: 0;
     padding: 0;
 }
 #feedback {
     position: absolute;
     height: 300px;
     width: 220px;
     font-family: arial;
     margin: 5px;
     padding: 10px;
     z-index: 40;
     background-color: rgba(248, 248, 248, .8);
     color: #444;
     left: 30px;
     top: 30px;
     -moz-box-shadow: 0 0 5px #888;
     -webkit-box-shadow: 0 0 5px #888;
     box-shadow: 0 0 5px #888;
 }
 #legendWrapper {
     padding: 0px 0 0 0;
 }
 #loading {
     visibility: hidden;
     width: 0px;
     height: 0px;
     margin: auto;
     padding: 10px;
     top: 0;
     left: 0;
     right: 0;
     bottom: 0;
     position: absolute;
     z-index: 100;
     opacity: 0.3;
 }
 #help {
     position: absolute;
     left: 0;
     bottom: 0;
     z-index: 100;
     padding: 10px;
 }
 h3 {
     margin: 0 0 5px 0;
     border-bottom: 1px solid #444;
 }