404页面

展示效果
html
<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>404页面</title>
</head>
<style>
    .center{
         800px;
        height: 340px;
        position: absolute;
        left: 0;
        top: 0;
        right: 0;
        bottom: 0;
        margin: auto;
    }
    .imgleft{
        display: block;
        float: left;
        height:100%;
        400px;
    }
    h1 {
        font-size: 7.5em;
        margin: 15px 0px;
        font-weight: bold;
    }
    h2{
        font-weight: bold;
    }
</style>
<body>

<div class="center">
    <img class="imgleft" src="./404.svg" alt="">
    <div class="right">
        <h1>404</h1>
        <h2>UH OH! 页面丢失</h2>
        <p>很抱歉，您访问的页面不存在！请仔细检查您输入的网址是否正确。</p>
    </div>
</div>

</body>
</html>