@charset "utf-8";

#header {
	position: relative;
	height: 100vh;
}

#youtube-area {
	position:  fixed;
	z-index:  1;
	top: 0;
	right: 0;
	left: 0;
	bottom: 0;
	overflow: hidden;
	opacity: 0;
}

#youtube-area.appear {
	animation-name: PageAnimeAppear;
	animation-duration: .2s;
	animation-fill-mode: forwards;
}

@keyframes PageAnimeAppear{
	0%{
		opacity: 0;
	}
	100%{
		opacity: 1;
	}
}

#youtube {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	width:  177.77777778vh;
	height:  56.25vw;
	min-height: 100%;
	min-width: 100%;
}

#youtube-mask{
	position: absolute;
	z-index: 2;
	top: 0;
	width: 100%;
	height: 100%;
}

/*youtube 上のロゴ */
h1{
  position:absolute;
  z-index: 2;/*下から2番目に表示*/
  font-size: 1em;
  font-family:  "Helvetica Neue", "Helvetica", "Arial";
/*色指定*/
  color:#fff;
  transform: translateY(-50%) translateX(-50%);
}

#time{
	/*天地中央配置*/
  top: 95%;
  left: 3%;
}

#container{
	position: relative;
	z-index: 3;
	background: #333;
	color: #fff;
	padding: 300px 0;
	text-align: center;
}