css居中，进度条

最新推荐文章于 2025-01-29 10:46:22 发布

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最新推荐文章于 2025-01-29 10:46:22 发布

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .container{
            position: fixed;
            left:0;
            top:0;
            width:100%;
            height:100%;
        }
        .box{
            width:50px;
            height:50px;
            border:1px solid red;
            position: absolute;
            left:0;
            top:0;
            right:0;
            bottom:0;
            margin:auto;
        }
    </style>
</head>
<body>
<div class="container">
    <div class="box"></div>
</div>
<img src="images/1.jpg" alt="">
<script src="jquery-2.1.1.min.js"></script>
<script>
    document.onreadystatechange=function(){
        console.log(document.readyState);
        if(document.readyState=='complete'){
            //影藏loading
        }
    }
</script>
</body>
</html>