1. html 结构
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Targeted Selectos</title>
</head>
<body>
<div>
<p>Lorem ipsum dolor sit, amet consectetur adipisicing elit. Itaque, commodi?</p>
<ul>
<li>Item 1</li>
<li><p>Item 2</p></li>
<li>Item3</li>
</ul>
<p>Lorem ipsum dolor sit amet.</p>
</div>
<p>Lorem ipsum dolor sit amet consectetur.</p>
<br>
<a href="#">第一页</a>
<a href="#">第二页</a>
<a href="http://www.baidu.com" target="_blank">百度</a>
<form>
<input type="text" placeholder="姓名">
<input type="text" placeholder="邮箱">
<input type="submit" placeholder="提交">
</form>
</body>
</html>
2. css 样式
/* 选择div的直接子元素 */
div > p{
background: #ddd;
}
/* 选择div 的兄弟 */
div + p {
background-color: #333;
color: #ffffff;
}
a[target] {
background: red;
color: #ffffff;
}
/* 根据属性更改样式 */
input[type="text"],
input[type="email"] {
width: 100%;
margin-bottom: 5px;
}