为背景图添加遮罩效果
目录
css:.wrap{
position: relative;
background: url(i/pic4.jpg) no-repeat;
-webkit-background-size: 100%;
background-size: 100%;
}
.wrap-mask:after{
position: absolute;
top: 0;
left: 0;
content: "";
background-color: #333;
opacity: 0.3;
z-index: 1;
width: 100%;
height: 100%;
}
html:
<div class="wrap">
<div class="wrap-mask"></div>
</div>
