.youtube-video-wrapper {
	position: relative;
	padding-bottom: 56.25%; /* 16:9 */
	padding-top: 25px;
	height: 0;
}
.youtube-video-wrapper iframe {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
}

/* The container */
.container {
	display: block;
	position: relative;
	padding-left: 35px;
	margin-bottom: 12px;
	cursor: pointer;
	-webkit-user-select: none;
	-moz-user-select: none;
	-ms-user-select: none;
	user-select: none;
}

/* Hide the browser's default checkbox */
.container input[type = "checkbox"] {
	position: absolute;
	opacity: 0;
	cursor: pointer;
	height: 0;
	width: 0;
}

/* Create a custom checkbox */
.checkmark {
	position: absolute;
	top: 0;
	left: 0;
	height: 25px;
	width: 25px;
	background-color: #eee;
}

/* On mouse-over, add a grey background color */
.container:hover input[type = "checkbox"] ~ .checkmark {
	background-color: #ccc;
}

/* When the checkbox is checked, add a blue background */
.container input[type = "checkbox"]:checked ~ .checkmark {
	background-color: #2196F3;
}

/* Create the checkmark/indicator (hidden when not checked) */
.checkmark:after {
	content: "";
	position: absolute;
	display: none;
}

/* Show the checkmark when checked */
.container input[type = "checkbox"]:checked ~ .checkmark:after {
	display: block;
}

/* Style the checkmark/indicator */
.container .checkmark:after {
	left: 10px;
	top: 7px;
	width: 5px;
	height: 10px;
	border: solid white;
	border-width: 0 3px 3px 0;
	-webkit-transform: rotate(45deg);
	-ms-transform: rotate(45deg);
	transform: rotate(45deg);
}