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。
方法一:通过定位叠加(注意层级)
<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;
}
web前端开发学习Q-q-u-n: 767273102 ,分享学习的方法和需要注意的小细节,不停更新最新的教程和学习方法(详细的前端项目实战教学视频)
方法二:通过伪类元素叠加
<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;
}
方法三:CSS3颜色叠加background-blend-mode:multiply;(正片叠底)
<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;
}
web前端开发学习Q-q-u-n: 767273102 ,分享学习的方法和需要注意的小细节,不停更新最新的教程和学习方法(详细的前端项目实战教学视频)
拓展:背景模糊加颜色叠加
.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;
}
原文地址:https://blog.51cto.com/14592820/2447573
时间: 2024-10-04 00:53:07