.scroll { width: 520px; clear: both; margin: 20px 0 10px; z-index: 100; }
.scroll .viewport { width: 500px; height: 310px; overflow: hidden; position: relative; }
.scroll .overview { list-style: none; position: absolute; left: 0; top: 0; z-index: 101; }
.scroll .thumb .end,
.scroll .thumb { background-color: #8c878c; }
.scroll .scrollbar { position: relative; float: right; width: 5px; }
.scroll .track { background-color: #d5d4d5; height: 100%; width:4px; position: relative; padding: 0 1px; border: 1px solid #beb8be;  }
.scroll .thumb { height: 20px; width: 4px; cursor: pointer; overflow: hidden; position: absolute; top: 0; }
.scroll .thumb .end { overflow: hidden; height: 5px; width: 4px; }
.scroll .disable{ display: none; }

.scroll .overview {
	width: 450px;
	margin: 0px auto 0px 0px;
	text-align: justify;
	margin-left: 35px;
}