HTML 5 element with <video> inside grows in height when page loaded. [Video inside]

[alejandrowunderlich]

Not sure what’s going on here. I have a little CSS on the video itself:

<style>
#myVideo {
border-radius: 22px;
overflow: hidden;
width:100%;
height:100%;
padding:0 !important;
}
</style>

Not sure why it’s doing this. A little help would be appreciated.