CSS如何判断横屏竖屏

竖屏引用

<link rel="stylesheet" media="all and (orientation:portrait)" href="portrait.css">

横屏引用

<link rel="stylesheet" media="all and (orientation:landscape)" href="landscape.css">

css代码

@media screen and (orientation: portrait) { 
 /*竖屏 css*/ 
} 
@media screen and (orientation: landscape) { 
 /*横屏 css*/ 
}

JS判断横屏竖屏方法

//判断手机横竖屏状态： 
window.addEventListener("onorientationchange" in window ? "orientationchange" : "resize", function() { 
 if (window.orientation === 180 || window.orientation === 0) { 
 alert('竖屏状态！'); 
 } 
 if (window.orientation === 90 || window.orientation === -90 ){ 
 alert('横屏状态！'); 
 } 
 }, false);