css实现透明背景渐变 linear-gradient

css实现透明背景渐变 linear-gradient

// html
<div class="curtain"></div>
// css
.curtain:before {
    
    
    display: block;
    width: 100%;
    height: 32px;
    background: linear-gradient(var(--vp-c-bg),transparent 70%);
    content: "";
}