Use CSS max-width property responsive for video player

You can try to run the following code to use a max-width property to make your video player responsive −


Live Demo

<!DOCTYPE html>
      <meta name = "viewport" content = "width=device-width, initial-scale = 1.0">
         video {
            max-width: 100%;
            height: auto;
      <video width = "300" controls autoplay>
         <source src = "/html5/foo.ogg" type = "video/ogg" />
         <source src = "/html5/foo.mp4" type = "video/mp4" />
      <p>To check the effect, you need to resize the browser.</p>