css遮罩层
Q.如何给一张图片img加遮罩层?
<div class="container"> <img src="xxx.jpg" width="" height="" /> </div>
A1.在<img>下加一个表示遮罩层的空标签
html代码:
1 <div class="container"> 2 <img src="xxx.jpg" width="" height="" /> 3 <div class="mask"></div> 4 </div>
css代码:
1 .container { 2 position:relative; 3 } 4 .mask { 5 background;url('mask.png') no-repeat; 6 opacity: 0.6; 7 position:absolute; 8 top:0; 9 left:0; 10 }
A2.给container设置背景
css代码:
1 .container { 2 background:url('mask.png') no-repeat; 3 } 4 img { 5 opacity:0.4; 6 }
background;url('mask.png') no-repeat;