前段时间在开发中,遇到需要给背景层加颜色遮罩的项目,现在特定总结一下给背景图层加颜色遮罩的方法。
<div class="wrap1">
<div class="inner"> </div>
</div>
.wrap1 {
position: relative;
width: 1200px;
height: 400px;
background: rgba(0, 0, 0, .5);
}
.wrap1 .inner {
position: absolute;
left: 0;
right: 0;
top: 0;
bottom: 0;
background: url(ban8.jpg) no-repeat center center;
background-size: cover;
z-index: -1;
}
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<div class="wrap2"></div>
.wrap2 {
position: relative;
width: 1200px;
height: 400px;
background: url(ban8.jpg) no-repeat center center;
background-size: cover;
}
.wrap2::before {
content: "";
position: absolute;
left: 0;
right: 0;
bottom: 0;
top: 0;
background-color: rgba(0, 0, 0, .5);
z-index: 2;
}
<div class="wrap3"></div>
.wrap3 {
position: relative;
width: 1200px;
height: 400px;
background: url(ban8.jpg) rgba(0, 0, 0, .5) no-repeat center center;
background-blend-mode: multiply;
}
.wrap4 {
position: relative;
width: 1200px;
height: 400px;
background: url(ban8.jpg) rgba(0, 0, 0, .5) no-repeat center center;
background-blend-mode: multiply;
filter: blur(2px);
overflow: hidden;
}
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