移动端横屏处理

@media screen and (orientation: landscape) {
        .update-main-content {
                padding: 2.18rem 0 2.18rem 0;
      }
}

   function initLandscape() {
       var clientHeight = document.documentElement.clientHeight || window.innerHeight || window.screen.height;
       var fontSize = clientHeight > 1080 ? 100 : clientHeight / 10.8;
       fontSize = fontSize > 22 ? fontSize : 22;
       document.documentElement.style.fontSize = fontSize + ‘px‘;
   };

  //判断手机横屏状态：
    window.addEventListener("onorientationchange" in window ? "orientationchange" : "resize", function() {
        if (window.orientation === 90 || window.orientation === -90 ){ 
            location.reload(true);
            initLandscape();
        }  
    }, false);