[id*=s]{
		width: 200px;
		height: 50px;
	}
	a[href$=\/]:after,a[href$=htm]:after,a[href$=html]:after{
		content: "web网页"
		color:red;
	};
	a[href$=jpg]:after{
		content: "jpg图像文件"
		color:green;
	}