简体   繁体   中英

why image not stretching verticlly

I have written the following code and I simply cannot understand why the image I have setted to be on the background doesn't strech vertically to cover the full page . I would appreciate your help

html{
    height: 100%;
    overflow-y: scroll;
}
html:after{
    margin-bottom:0;
    content : "";
    background: url("../images/van1.jpg") no-repeat center center;
    background-size:cover;
    width: 100vw;
    height: 100vh;
    position: absolute;
    overflow: hidden;
    top: 0;
    left: 0;
    opacity: 0.5;
    filter: alpha(opacity=50);
    z-index: -1;
}`

使用html:after就像在<body>标记旁边的<html>添加一个孩子一样,这是无效的,浏览器可能无法正确呈现它,最好使用body:after并设置height: 100%这样它可以覆盖您的页面。

The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.

 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM