#file_name{
	font-size: 1rem;
}

.file_content{
	position: absolute;
	top: 0;left: 0;
	width: 100%;height: 100%;
}
.video_height{
	overflow-y: scroll;
	height: 50vh;
}
@media(min-width: 1200px){
	.video_height{
		height: calc(((100vw - 17px)*80/100*94/100*8/12 - 10px)*9/16);				}
}