CSS3 多媒體查詢實例
CSS3 多媒體查詢實例
本章節我們將為大家示範一些多媒體查詢實例。
開始之前我們先製作一個電子郵件信箱的連結清單。 HTML 程式碼如下:
<!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 屬性。在 HTML 中我們可以使用帶有 data- 前綴的屬性來儲存資訊。
520 到699px 寬度- 新增郵箱圖示
當瀏覽器的寬度在520 到699px, 信箱連結前新增郵件圖示:
<!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 - 新增文字前綴資訊
當瀏覽器的寬度在700 到1000px, 會在信箱連結前加上"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>
大於1001px 寬度- 新增郵件地址
當瀏覽器的寬度大於1001px 時,會在連結後加入郵件地址接。
我們會使用 data- 屬性為每個人名後新增郵件地址:
<!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>
大於1151px 寬度- 新增圖示
#當瀏覽器的寬度大於1001px 時,會在人名前加上圖示。
實例中,我們沒有寫額外的查詢區塊,我們可以在已有的查詢媒體後使用逗號分隔來新增其他媒體查詢(類似OR 運算子):
<!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>