1. Text centering:
text-align: center; line-height: 100px; (=height)
2. Label centering
margin: 0 auto; 其中0指的是margin-top:0
Code piece:
<!DOCTYPE html> <html lang="en"><head> <meta charset="UTF-8"> <title>搜索论坛</title> <link rel="stylesheet" href="https://www.baidu.com/img/baidu_jgylogo3.gif"> <style> .item1{ height: 100px; width: 100px; background-color: red; text-align: center; line-height: 100px; margin: 0 auto; } .item2{ height: 100px; width: 100px; background-color: wheat; text-align: center; line-height: 100px; margin: 100px auto; } </style> </head> <body> <p class="outer"> <p class="item1">1111</p> <p class="item2">2222</p> </p> </body> </html>
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