orientation
语法:
orientation:portrait | landscape
portrait:指定输出设备中的页面可见区域高度大于或等于宽度
landscape:除portrait值情况外,都是landscape
1 @media screen and (orientation: portrait){ 2 .test::after { 3 content: "竖屏"; 4 } 5 } 6 @media screen and (orientation: landscape){ 7 .test::after { 8 content: "横屏"; 9 } 10 }