.maincontent {
    max-width: 100%;
    margin: 0 auto;
    padding: 0;
    border: none;
}
.video-container {
	position: relative;
	border-radius: 10px;
	overflow: hidden;
	height: 680px;
}

.video-container iframe {
    width: 100%;
    height: 100%;
    border: 0;
    border-radius: 10px;
}