.c-blue {
	text-decoration-line: underline;
	color: #7F00FF;
}
.lesson-program-header, .homework-header {
	font-weight: bold;
}
.news-detail-body ul li {
	margin-bottom: 0;
}

.iframe-wrapper {
	position: relative;
	padding-bottom: 56.25%;
	height: 0;
	overflow: hidden;
}
.iframe-wrapper .iframe {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
}

.d-flex.justify-content-between.align-items-center {
	display: flex;
	align-items: center;
	justify-content: space-between;
}