.bg-img{ width:750rpx; } .container{ position: relative; font-size: 0; } .btn-img{ width:306rpx; height:82rpx; left:222rpx; top:1160rpx; position: absolute; background: url('https://jzmall.lifejingzhi.com/file/wx-servant/btn-share.png') no-repeat center; background-size:100% ; outline: none; border: none; } button::after{ border: none; }