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>
新建檔案
<!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>
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