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HomeWeb Front-endCSS TutorialHow to add color mask to background layer in css3

How to add color mask to background layer in css3

(Learning video sharing: css video tutorial)

During development, sometimes we encounter projects that require adding a color mask to the background layer , now let’s specifically summarize the method of adding color mask to the background layer.

How to add color mask to background layer in css3

Method 1: Overlay through positioning (note the level)

<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;
}

Method 2: Overlay through pseudo-class elements

<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;
}

Method 3: CSS3 color overlay background-blend-mode:multiply;(multiply)

<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;
}

Expand: background blur and color Overlay

How to add color mask to background layer in css3

.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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