<html>
<head>
    <style type="text/css" rel="alternate">

    body {background-color:yellow
        background-img:url(/i/04_.img);
        background-repeat:repeat;
        background-position:center;
        background-attachment:fixed;
    }
    h1,h2{background-color:red}
    .no2{ background-color:gray;
    padding:20px;}
        p{text-indet:5em;
            padding-left:5em;
            text-align:right;
            word-spacing:30px;
            letter-spacing:20px;
            text-transform:uppercase


            }


    </style>

</head>

<body>

<h1>这是标题 1</h1>
<h2>这是标题 2</h2>
<p>这是段落</p>
<p class="no2">这个段落设置了内边距。</p>

</body>
</html>
