@charset "utf-8";

/*-------------------------------
	introBox
-------------------------------*/
.introBox{
	width:100%;
	max-width: 900px;
	margin: 100px auto 0;
}
.yt {
	position: relative;
	padding-bottom: 56.25%; /*アスペクト比 16:9の場合の縦幅*/
	height: 0;
	overflow: hidden;
}

.yt iframe {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
}


/*-------------------------------
	SP専用
-------------------------------*/
@media screen and (max-width:768px) {
.introBox{
	margin-top: 0;
}
}