html表格示例：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
*{
border:0;
padding:0;
margin:0;
box-sizing: border-box;
}
table,tr,td{
border:1px solid gray;
}
table{
width: 400px;
height: 300px;
margin: 30px auto;
}
</style>
</head>
<body>
<table cellpadding="30px">
<tr>
<td rowspan="2">td011</td><td colspan="2">td012</td><td>td015</td>
</tr>
<tr>
<td >td012</td><td>td013</td><td>td014</td>
</tr>
<tr>
<td colspan="4">td011</td>
</tr>
</table>
</body>
</html>
結果如下圖：
