CSS:毛玻璃效果
通过伪元素进行处理,然后将其元素定位到元素的下层(z-index:-1),它的背景将会无缝比配到body中
*{margin: 0;padding: 0;box-sizing: border-box;} body,.main::before{background: url("15.jpg") 0/cover fixed;} .main{padding: 20px;margin:100px auto 0 auto;width: 500px;position: relative;overflow: hidden;color:#fff;} .main::before{content: '';position: absolute;top:0;right: 0;left: 0;bottom: 0;filter:blur(20px);z-index:-1;}
<div class="main"> SHDUEI DWIH DEU DGGDUIHUI HOJDH dhsh hdui rhu e de ihd huih<br> dhsh hdui rhu e de ihd huih<br> dhsh hdui rhu e de ihd huih<br> SHDUEI DWIH DEU DGGDUIHUI HOJDH dhsh hdui rhu e de ihd huih<br> dhsh hdui rhu e de ihd huih<br> dhsh hdui rhu e de ihd huih<br> </div>

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