html {
	height: 100%;
	width: 100%;
	text-align: center;
}

#back {
	color: #200080;
	text-decoration: none;
	font-family: serif;
}

#reset {
	background-color: #e0e0e0;
	color: black;
	border: 1px solid black;
	padding: 2px 6px;
	border-radius: 3px;
}
#resetBook {
	background-color: #ff0000;
	color: #efefff;
	border: 1px solid black;
	padding: 2px;
	border-radius: 3px;
}

#letter-container {
	width: 100%;
	display: flex;
	justify-content: center;
	user-select: none;
	-webkit-user-select: none;
  	-ms-user-select: none;
	box-sizing: border-box;
	align-items: center;
	margin: 0px;
	padding: 1vw;
	flex-wrap: wrap;
	gap: 0.4vw 0.5vw;
	font-size: max(19px, 1.9vw);
}
.letter {
	width: max(35px, 3.5vw);
	height: max(45px, 4.5vw);
	margin: 0px;
	padding: 0px;
	background-color: #c8c8c8;
	box-sizing: border-box;
	color: black;
	text-align: center;
	line-height: max(47px, 4.7vw);
	border-radius: max(6.5px, 0.65vw);
	font-family: Arial, sans-serif;
	font-size: max(19px, 1.9vw);
	white-space: pre-line;
}
.letter:hover {
	background-color: #dddddd;
}

#element {
	margin: 0 35%;
	width: 80px;
	height: 100px;
	border-width: 3px;
	border-radius: 10px;
	font-family: serif;
	font-size: 20px;
}
#elementNo {
	margin: 4px;
	text-align: right;
	font-weight: bold;
	font-size: 14px;
}
#elementSym {
	margin: 8px;
	font-weight: bold;
	font-size: 36px;
}
#elementName {
	margin: 8px 0;
	padding: 4px 0;
	font-weight: bold;
	font-size: 12px;
}