背景图片

background-image:url("http://lbs.lanbanshou.com/static/merchant/bg@2x.png");
background-repeat:no-repeat;
overflow:hidden;
background-position:center;
background-size:cover;
100vw;
height:418rpx;
原文地址:https://www.cnblogs.com/xiangxiang521/p/10836632.html