標籤：head flow meta blog log set osi abs border
1、media
效果為螢幕寬度變化時，背景顏色也變化
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>Title</title> <style> @media screen and (max-width: 1024px){ .bg{ background-color: aqua; } } @media screen and (max-width: 980px) { .bg { background-color: red; } } @media screen and (max-width: 720px) { .bg { background-color: yellow; } } @media screen and (max-width: 640px) { .bg { background-color: green; } } @media screen and (max-width: 320px) { .bg { background-color: darkgray; } } </style></head><body class="bg"></body></html>
2. 彈性圖片
樣式如下面的code
.img 和 img
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>Title</title> <style> @media screen and (max-width: 1024px){ .bg{ background-color: aqua; } } @media screen and (max-width: 980px) { .bg { background-color: red; } /*使用流體圖片*/ img { max-width: 100%; height: auto; width: auto\9; /* ie8 */ position: absolute; width:600px; top:-25%; } .img{ height: 200px; border:1px solid sandybrown; overflow:hidden; margin-bottom:10px; display: block; position: relative; } } @media screen and (max-width: 720px) { .bg { background-color: yellow; } } @media screen and (max-width: 640px) { .bg { background-color: green; } } @media screen and (max-width: 320px) { .bg { background-color: darkgray; } } </style></head><body class="bg"> <div style="margin-top: 300px" class="img"> <img src="image/img1.jpg" /> </div></body></html>
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