Media Query CSS

背景知识： Media Query (opens new window)

@charset="utf-8"
/* 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 */ }

/* iPads (portrait) ----------- */
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : portrait) { /* Styles */ }

/* Desktops and laptops ----------- */
@media only screen and (min-width : 1224px) { /* Styles */ }

 /* Large screens ----------- */
@media only screen and (min-width : 1824px) { /* Styles */ }

/* iPhone 4 ----------- */
@media only screen and (-webkit-min-device-pixel-ratio : 1.5), only screen and (min-device-pixel-ratio : 1.5) { /* Styles */ }