.canvas-container {
  width: 100%;
  max-width: 497px;  /* 任意：元サイズ以上に拡大させたくない場合 */
}
.canvas-container canvas {
  display: block;
  width: 100%;
  height: auto;
}

.font_size_2rem{
	font-size: 2.0rem;
	font-weight: bold;
}
.font_size_3rem{
	font-size: 3.0rem;
	font-weight: bold;
}

.img-center{
	text-align: center;
}

.startbtn {
	font-size: 1.0rem;
	font-weight: 700;
	line-height: 0.3;
	position: relative;
	display: inline-block;
	padding: 1rem 1rem;
	margin: 5px 5px 10px 5px;
	cursor: pointer;
	text-align: center;
	vertical-align: middle;
	text-decoration: none;
	letter-spacing: 0.1em;
	width: 200px;
	height: 50px;
}
.startbtn-orange {
	color: #fff;
	/*background-color: #9A9A9A;*/
}
.startbtn-radius {
	border-radius: 2vh;
}

.backcolor-fastForward {
	background-color: #49d64e;
}


#status {
	font-size: 2.0rem;
	font-weight: bold;
	width: 350px;
}