为什么这个示例表,第一列扩大了这么多,而其他列缩小了?
<html>
<head>
<style type="text/css">
table,th, td,{
width:100%;
border: 4px, solid;
border-collapse:collapse;
}
</style>
</head>
<body>
<table>
<tr>
<th>First Name</th>
<th>Last Name</th>
<th>Date</th>
<th>Notes</th>
</tr>
<tr>
<td>Jill</td>
<td>Smith</td>
<td>20-12-2013</td>
<td>AAAa</td>
</tr>
<tr>
<td>Jill</td>
<td>Smith</td>
<td>20-12-2013</td>
<td>AAAa</td>
</tr>
<tr>
<td>Eve </td>
<td>Jackson</td>
<td>20-12-2013</td>
<td>AAAa</td>
</tr>
<tr>
<td>John </td>
<td>Doe</td>
<td>20-12-2013</td>
<td>AAAa</td>
</tr>
<tr>
<td>Adam </td>
<td>Johnson</td>
<td>20-12-2013</td>
<td>AAAa</td>
</tr>
</table>
</body>
</html>