你可以使用CSS3 Media Queries:
/* Smartphones (portrait and landscape) */
@media only screen
and (min-device-width : 320px)
and (max-device-width : 480px) {
/* Styles */
}
/* Smartphones (landscape) */
@media only screen
and (min-width : 321px) {
/* Styles */
}
/* Smartphones (portrait) */
@media only screen
and (max-width : 320px) {
/* Styles */
}
/* iPads (portrait and landscape) */
@media only screen
and (min-device-width : 768px)
and (max-device-width : 1024px) {
/* Styles */
}
/* iPads (landscape) */
@media only screen
and (min-device-width : 768px)
and (max-device-width : 1024px)
and (orientation : landscape) {
/* Styles */
}