CSS : @media 示例

 1 .example {
 2     padding: 20px;
 3     color: white;
 4 }
 5 /* Extra small devices (phones, 600px and down) */
 6 @media only screen and (max-width: 600px) {
 7     .example {background: red;}
 8 }
 9 
10 /* Small devices (portrait tablets and large phones, 600px and up) */
11 @media only screen and (min-width: 600px) {
12     .example {background: green;}
13 }
14 
15 /* Medium devices (landscape tablets, 768px and up) */
16 @media only screen and (min-width: 768px) {
17     .example {background: blue;}
18 } 
19 
20 /* Large devices (laptops/desktops, 992px and up) */
21 @media only screen and (min-width: 992px) {
22     .example {background: orange;}
23 } 
24 
25 /* Extra large devices (large laptops and desktops, 1200px and up) */
26 @media only screen and (min-width: 1200px) {
27     .example {background: pink;}
28 }