ul,li,dl,dt,dd{
		margin: 0;
		padding: 0;
	}
	
	ul{
		list-style: none;
	}
	
	dl{
		border: solid 1px #00f;
		float: left;
	}
	
	dl dt{
		background-color: #55f;
		border-right: solid 1px #00f;
		float: left;
		text-align: center;
		position: relative;
		width: 100px;
		height: 35px;
	}
		
		dl dt a{
			color: #fff;
		}
	
		dl dt ul{
			display: none;
			position: absolute;
			top: 35px;
			left: 0;
			z-index: 0;
		}
			
			dl dt ul li{
				background: #77f;
				position: relative;
				width: 100px;
				height: 35px;
			}
			
				dl dt ul li ul{
					display: none;
					position: absolute;
					top: 0px;
					left: 100px;
					z-index: 0;
					}