h5 video 标签手机打开，如何能横屏展示？

Question

android和ios都希望横屏

<video class="theVideo" 
    controls="true" 
    controlslist="nodownload" 
    webkit-playsinline="true" 
    playsinline="true" 
    x5-video-player-type='h5' 
    x5-video-player-fullscreen='true' 
    x5-video-player-orientation="landscape">
 <source src="./asset/flyVideo.mp4" type="video/mp4">
 您的浏览器不支持 HTML5 video 标签。  
 </video>