.cst-video-pic {
	width: 100%;
}

.cst-video-pic img {
	width: 100%;
}

.cst-video {
	max-width: 770px;
    margin: 0 auto;
}

.cst-video-pic {
	position: relative;
}

.cst-video-pic::after {
	content: '';
	width: 100px;
	height: 100px;
	background-image: url('https://nqi-russia.ru/upload/icon-play.png');
	background-size: 100% 100%;
	position: absolute;
	top: 0;
	right: 0;
	left: 0;
	bottom: 0;
	margin: auto;
	transition: 0.3s;
}

.cst-video-pic:hover::after {
	transform: scale(1.2);
}