老师请检查
来源:2-29 编程练习
Jin66
2020-04-17 23:00:46
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>:nth-child()</title>
<style type="text/css">
/*此处补充样式*/
th{
background:red;
}
tr>td:nth-child(odd){
color:#007de7;
}
tr>td:nth-child(even){
color:#d7d77d;
}
</style>
</head>
<body>
<table border="1" cellspacing="0" width="200">
<thead>
<tr>
<th>序号</th>
<th>姓名</th>
<th>性别</th>
<th>年纪</th>
</tr>
</thead>
<tbody>
<tr>
<td>1</td>
<td>张三</td>
<td>男</td>
<td>12</td>
</tr>
<tr>
<td>2</td>
<td>李四</td>
<td>女</td>
<td>11</td>
</tr>
<tr>
<td>3</td>
<td>赵五</td>
<td>男</td>
<td>12</td>
</tr>
<tr>
<td>4</td>
<td>王二</td>
<td>男</td>
<td>12</td>
</tr>
</tbody>
</table>
</body>
</html>1回答
好帮手慕糖
2020-04-18
同学你好,颜色是一行行的改变的,所以应该是给行设置字体颜色,不是列,且thead下的颜色是默认的黑色,只给tbody下的行设置即可,例:

如果我的回答帮助了你,欢迎采纳,祝学习愉快~