CSS3 多媒体查询实例
CSS3 多媒体查询实例
本章节我们将为大家演示一些多媒体查询实例。
开始之前我们先制作一个电子邮箱的链接列表。HTML 代码如下:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <style> ul { list-style-type: none; } ul li a { color: green; text-decoration: none; padding: 3px; display: block; } </style> </head> <body> <ul> <li><a data-email="johndoe@example.com" href="">John Doe</a></li> <li><a data-email="marymoe@example.com" href="">Mary Moe</a></li> <li><a data-email="amandapanda@example.com" href="">Amanda Panda</a></li> </ul> </body> </html>
注意 data-email 属性。在 HTML 中我们可以使用带 data- 前缀的属性来存储信息。
520 到 699px 宽度 - 添加邮箱图标
当浏览器的宽度在 520 到 699px, 邮箱链接前添加邮件图标:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <style> ul { list-style-type: none; } ul li a { color: green; text-decoration: none; padding: 3px; display: block; } @media screen and (max-width: 699px) and (min-width: 520px) { ul li a { padding-left: 30px; background: url(../style/images/email-icon.png) left center no-repeat; } } </style> </head> <body> <h1>重置浏览器窗口,查看效果!</h1> <ul> <li><a data-email="johndoe@example.com" href="">John Doe</a></li> <li><a data-email="marymoe@example.com" href="">Mary Moe</a></li> <li><a data-email="amandapanda@example.com" href="">Amanda Panda</a></li> </ul> </body> </html>
700 到 1000px - 添加文本前缀信息
当浏览器的宽度在 700 到 1000px, 会在邮箱链接前添加 "Email: ":
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <style> ul { list-style-type: none; } ul li a { color: green; text-decoration: none; padding: 3px; display: block; } @media screen and (max-width: 699px) and (min-width: 520px) { ul li a { padding-left: 30px; background: url(../style/images/email-icon.png) left center no-repeat; } } @media screen and (max-width: 1000px) and (min-width: 700px) { ul li a:before { content: "Email: "; font-style: italic; color: #666666; } } </style> </head> <body> <h1>重置浏览器窗口,查看效果!</h1> <ul> <li><a data-email="johndoe@example.com" href="">John Doe</a></li> <li><a data-email="marymoe@example.com" href="">Mary Moe</a></li> <li><a data-email="amandapanda@example.com" href="">Amanda Panda</a></li> </ul> </body> </html>
大于 1001px 宽度 - 添加邮件地址
当浏览器的宽度大于 1001px 时,会在链接后添加邮件地址接。
我们会使用 data- 属性来为每个人名后添加邮件地址:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <style> ul { list-style-type: none; } ul li a { color: green; text-decoration: none; padding: 3px; display: block; } @media screen and (max-width: 699px) and (min-width: 520px) { ul li a { padding-left: 30px; background: url(../style/images/email-icon.png) left center no-repeat; } } @media screen and (max-width: 1000px) and (min-width: 700px) { ul li a:before { content: "Email: "; font-style: italic; color: #666666; } } @media screen and (min-width: 1001px) { ul li a:after { content: " (" attr(data-email) ")"; font-size: 12px; font-style: italic; color: #666666; } } </style> </head> <body> <h1>重置浏览器窗口,查看效果!</h1> <ul> <li><a data-email="johndoe@example.com" href="">John Doe</a></li> <li><a data-email="marymoe@example.com" href="">Mary Moe</a></li> <li><a data-email="amandapanda@example.com" href="">Amanda Panda</a></li> </ul> </body> </html>
大于 1151px 宽度 - 添加图标
当浏览器的宽度大于 1001px 时,会在人名前添加图标。
实例中,我们没有编写额外的查询块,我们可以在已有的查询媒体后使用逗号分隔来添加其他媒体查询 (类似 OR 操作符):
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <style> ul { list-style-type: none; } ul li a { color: green; text-decoration: none; padding: 3px; display: block; } @media screen and (max-width: 699px) and (min-width: 520px), (min-width: 1151px) { ul li a { padding-left: 30px; background: url(../style/images/email-icon.png) left center no-repeat; } } @media screen and (max-width: 1000px) and (min-width: 700px) { ul li a:before { content: "Email: "; font-style: italic; color: #666666; } } @media screen and (min-width: 1001px) { ul li a:after { content: " (" attr(data-email) ")"; font-size: 12px; font-style: italic; color: #666666; } } </style> </head> <body> <h1>重置浏览器窗口,查看效果!</h1> <ul> <li><a data-email="johndoe@example.com" href="">John Doe</a></li> <li><a data-email="marymoe@example.com" href="">Mary Moe</a></li> <li><a data-email="amandapanda@example.com" href="">Amanda Panda</a></li> </ul> </body> </html>