时间:2021-07-01 10:21:17 帮助过:5人阅读
媒体查询的代码:
<!DOCTYPE html><html> <head> <meta charset="UTF-8"> <title></title> <style> .a { border: 1px solid #000000; width: 100px; height: 100px; background-color: #000000; } @media only screen and (min-width: 300px) and (max-width: 640px) { .a { background-color: red; } } @media only screen and (min-width: 700px) { .a { background-color: green; } } @media only screen and (max-width:200px ) { .a { background-color: blue; } } </style> </head> <body> <p class="a"></p> </body></html>
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