CSS自适应背景图的设置方式

background: #253340 url('./template_files/bg-header-small-5.jpg') no-repeat 50% top;-webkit-backgrou

background: #253340 url('./template_files/bg-header-small-5.jpg') no-repeat 50% top;	-webkit-background-size: cover;	-moz-background-size: cover;	-o-background-size: cover;	background-size: cover;