Sample Video Responsive player html 5

Just Follow this code

<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style>
video {
    width: 160%;
    height: 210px;
    border: 8px solid;
    border-radius: 12px;
    max-width: 540px;
    background-position: bottom;
    background-color: #808080b3;
}

@media screen and (max-width: 500px) {
video {
    width: 100%;
    height: 160;
    border: 3px solid;
    border-radius: 12px;
    max-width: 100%;
    background-position: bottom;
    background-color: #808080b3;
}

</style>