H5横竖屏适配代码，强制横屏

1、强制横屏代码，检测用户屏幕方向，竖屏时提示用户将屏幕翻转

<style>@media all and (orientation: portrait) {html, body {position: relative;overflow: hidden;width: 100%;height: 100%;padding: 0;margin: 0;}html::before {content: "";position: fixed;top: 0;left: 0;height: 100%;width: 100%;background: #333;z-index: 99999;}html::after {content: "\4E3A\4E86\66F4\597D\7684\4F53\9A8C\FF0C\8BF7\5C06\624B\673A\6A2A\8FC7\6765";position: absolute;top: 30%;left: -15%;height: 30px;width: 100%;margin-top: 30px;z-index: 99999;text-align: center;font-size: 16px;color: #fff;}body::before {content: "";position: absolute;z-index: 99999;height: 200px;width: 100px;left: 35%;top: 30%;margin: -160px 0 0 -50px;color: #fff;background-image: 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no-repeat;background-position: center center;background-size: 100px auto;}}</style>

2、自动横屏，当手机竖屏时，内容横屏，引导用户自己将手机横屏；

首先现在要适配的页面外层包裹一个div ,id设置wrapper，再讲下面代码复制过去即可

  var detectOrient = function () {var width = document.documentElement.clientWidthvar height = document.documentElement.clientHeightvar $wrapper = document.getElementById("wrapper")style = "";if (width >= height) { // 横屏style += "width:" + width + "px;";style += "height:" + height + "px;";style += "-webkit-transform: rotate(0); transform: rotate(0);";style += "-webkit-transform-origin: 0 0;";style += "transform-origin: 0 0;";}else { // 竖屏style += "width:" + height + "px;";style += "height:" + width + "px;";style += "-webkit-transform: rotate(90deg); transform: rotate(90deg);";style += "-webkit-transform-origin: " + width / 2 + "px " + width / 2 + "px;";style += "transform-origin: " + width / 2 + "px " + width / 2 + "px;";}$wrapper.style.cssText = style;}window.onresize = detectOrient;detectOrient();

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