html的书写基本格式及常见错误
html的标准书写方式如下：
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
<title>account statistics</title>
<meta name="keywords" content="account,statistics"/>
<meta name="description" content="this is account statistics"/>
<link type="image/x-icon" rel="shortcut icon" href="favicon.ico"/>
<link type="text/css" rel="stylesheet" href="./css/index.css"/>
<script type="text/javascript" src="./js/index.js"></script>
</head>
<body>
<div class="allcontent">
<div class="allc_title"><h1>account statistics</h1><span>there are xx data add data</span></div>
<div class="allc_content">
<table width="1000">
<tr>
<td>id</td>
<td>sort</td>
<td>categorize</td>
<td>website</td>
<td>account</td>
<td>password</td>
<td>remark</td>
<td>action options</td>
</tr>
<tr>
<td>id</td>
<td>sort</td>
<td>categorize</td>
<td>website</td>
<td>account</td>
<td>password</td>
<td>remark</td>
<td>revise | delete</td>
</tr>
</table>
</div>
</div>
</body>
</html>
其中用到的css代码如下：
body,html,ul,li,h1{margin:0;padding:0}
li{list-style:none}
table{border-collapse:collapse;}
th,td{border:1px solid black;text-align:center}
.allcontent{width:1024px;height:auto;margin:0px auto;background-color:red}
.allc_title{width:1024px;height:auto;font-size:24px; font-family:黑体;float:left;text-align:center}
.allc_title h1{font-size:24px;text-align:center;}
.allc_content{width:1024px; height:auto;float:left}
.allc_content ul{width:1024px;height:auto;float:left;border:1px solid black}
.allc_content ul li{width:auto;height:auto;float:left;margin:0px 10px;border-left:1px solid black}
在以上html中需要注意的几个常见问题，见图下：
如上图所示，看看自己的常见错误在哪里？