html
<div class="zhezhaox">
<div class="zhezhaox2"></div>
</div>
css
.zhezhaox {
position: relative;
padding: 1px;
.zhezhaox2 {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
background: rgba(255, 255, 255, 0.05);
backdrop-filter: blur(5px);
z-index: 1000;
}
}