body > div {
	box-sizing: border-box;
}

#note::before {
	content: "⚠";
}

#note {
	margin: 1rem 0.25em 1.25rem 0.25em;
  position: relative;
	background-color: #ffffcc;
	color: #ff0000;
	font-size: 2.5em;
	padding: 0.2em;
}

#note::after {
	content: '';
	position: absolute;
	top: -0.25em;
	bottom: -0.25em;
	left: -0.25em;
	right: -0.25em;
	background: repeating-linear-gradient(45deg, #000000, #000000 0.3em, #ffff00 0.3em, #ffff00 0.6em);
	background-color: #000000;
	z-index: -1;
}

#main {
	font-size: 2rem;
	margin: 1rem 0;
	height: 100%;
}

#header {
	color: #333333;
	margin: 1rem 0;
	height: 100%;
	border: calc(0.05rem + 1px) solid #999999;
}

#header h1 {
	margin: 0;
	padding: 0;
	font-size: 4rem;
	text-align: center;
}

#header h2 {
	display: inline-block;
	color: #666666;
	font-size: 2rem;
	width: 100%;
	text-align: center;
	font-family: sans-serif;
	font-weight: normal;
	margin: 0;
	margin-top: 0.5rem;
	letter-spacing: 0.1em;
}

#config {
	border: calc(0.05rem + 1px) solid #999999;
	margin: 1rem 0 0.5rem 0;
	padding: 0.5rem;
}

#config h2 {
	font-size: 2.5rem;
	margin: 0.5rem 0 0 0;
}

#config ul {
	margin: 0 0 0 1rem;
	padding: 0;
	list-style: none;
}

#config ul li {
	margin: 0.5rem 0 0 0;
}

#config p {
	margin: 0;
}

#config p.redio-sub, #config p.check-sub, #config p.counter-sub {
	margin-left: 6rem;
	font-size: 1.5rem;
	color: #000000;
}

.counter-label {
	padding-left: 2em;
}

#count-outer {
	user-select: none;
  writing-mode: vertical-rl;
	display: flex;
	align-items: center;
	flex-direction: row;
	margin: 0 auto;
}

.counter-main {
  writing-mode: initial;
}

#count-outer div {
  text-align: center;
}

#decrement10::before {
	content: "＞＞";
}

#decrement::before {
	content: ">";
}

#increment::before {
	content: "<";
}

#increment10::before {
	content: "＜＜";
}