Element Plus 官网导航背景模糊效果

效果演示

演示

<div class="container">
    <div class="header"></div>
    <div class="content">
        <span class="text">测试文本</span>
        <span class="color"></span>
    </div>
</div>

.container{
    position: relative;
}
.header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background-image: radial-gradient(transparent 1px, #fff 1px);
    background-size: 4px 4px;
    backdrop-filter: saturate(50%) blur(4px);
    -webkit-backdrop-filter: saturate(50%) blur(4px);
}
span{
    display: inline-block;
    vertical-align: top;
    min-width: 100px;
    height: 64px;
    line-height: 64px;
    margin-right: 24px;
}
span.text{
    font-size: 32px;
    color: #f00;
}
span.color{
    background: #0f0;
}

主要代码

div {
    background-image: radial-gradient(transparent 1px, #fff 1px);
    background-size: 4px 4px;
    backdrop-filter: saturate(50%) blur(4px);
    -webkit-backdrop-filter: saturate(50%) blur(4px);
}