实例
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>0321作业:基本选择器和属性选择器</title> <style type="text/css"> ul { padding: 0; margin: 0; width: 500px; border: 1px dashed #666; padding: 10px 5px; } ul:after { content: ''; display: block; clear: both; } li { list-style: none; float: left; width: 40px; line-height: 40px; text-align: center; border-radius: 10%; background-color: skyblue; margin-right:5px; } /*根据属性名来选择元素,选中所有带id属性的元素*/ *[id] { background-color: red; } /*根据属性名和值来选元素*/ li[class="green"] { background-color: lightgreen; } li[class ~="red"] { background-color: brown; } /*选择以ph开头的类样式的元素*/ li[class ^="ph"] { background-color: coral; } li[class $="s"] { background-color: lime; } /*选择属性中包括字母e的元素*/ li[class *="e"] { background-color: yellowgreen; } </style> </head> <body> <ul> <li id="item1">A</li> <li class="green">B</li> <li class="green">C</li> <li class="red">D</li> <li>E</li> <li >F</li> <li id="item2">G</li> <li class="php">H</li> <li class="php css">I</li> <li>J</li> </ul> </body> </html>
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