html,
body#canvas_body {
	overflow-x: hidden;
	overflow-y: hidden;
	height: 100%;
}

body {
	font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", sans-serif;
	-webkit-touch-callout: none;
	-webkit-text-size-adjust: none;
	-webkit-user-select: none;
	-webkit-highlight: none;
	-webkit-tap-highlight-color: rgba(0, 0, 0, 0);
	margin: 0;
}

canvas:focus {
	outline: 0;
}

#page_body {
	margin-top: 0.2rem;
}

#canvasID {
	display: block;
	margin: 0 auto;
	overflow: hidden;
}

#canvasID p.grade {
	color: #366092;
	font-size: 2rem;
}

#div_radio {
	line-height: 8px;
	text-align: center;
	color: #aaa;
	font-size: 0.7rem;
	position: fixed;
	bottom: 5px;
	left: 50%;
	margin-left: -60px;
}

label {
	display: block;
	vertical-align: middle;
}

label,
input,
select {
	vertical-align: middle;
}

.mui-switch {
	width: 3rem;
	height: 1.5rem;
	position: relative;
	border: 1px solid #dfdfdf;
	background-color: #eee;
	box-shadow: #dfdfdf 0 0 0 0 inset;
	background-clip: content-box;
	display: inline-block;
	-webkit-appearance: none;
	user-select: none;
	outline: none;
}

.mui-switch,
.mui-switch:before {
	border-radius: 1.5rem;
	border-top-left-radius: 1.5rem;
	border-top-right-radius: 1.5rem;
	border-bottom-left-radius: 1.5rem;
	border-bottom-right-radius: 1.5rem;
	border-radius: 1.5rem;
	border-top-left-radius: 1.5rem;
	border-top-right-radius: 1.5rem;
	border-bottom-left-radius: 1.5rem;
	border-bottom-right-radius: 1.5rem;
}

.mui-switch:before {
	content: '';
	width: 1.5rem;
	height: 1.4rem;
	position: absolute;
	top: 0px;
	left: 0;
	background-color: #fff;
	box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

.mui-switch:checked {
	border-color: #366092;
	box-shadow: #366092 0 0 0 16px inset;
	background-color: #366092;
}

.mui-switch:checked:before {
	left: 1.5rem;
}

.mui-switch.mui-switch-animbg {
	transition: background-color ease 0.4s;
}

.mui-switch.mui-switch-animbg:before {
	transition: left 0.3s;
}

.mui-switch.mui-switch-animbg:checked {
	box-shadow: #dfdfdf 0 0 0 0 inset;
	background-color: #366092;
	transition: border-color 0.4s, background-color ease 0.4s;
}

.mui-switch.mui-switch-animbg:checked:before {
	transition: left 0.3s;
}