:root {
	--color-bg: #fff;
	--color-error: #f00;
	--color-info: #00f;
}

body {
	margin: 0;
	overflow: hidden;
}

.board-svg .pixel {
	r: 1px;
}
.board-html {
	position: relative;
}
.board-html .pixel {
	position: absolute;
	width: 1px;
	height: 1px;
}

.walker-highlighter {
	border: 1px solid black;
	background-color: #ffffff88;
	border-radius: 50%;
	width: 20px;
	height: 20px;
	position: absolute;
	z-index: 100;
}

.walker-highlighter.highlight {
	background-color: #0000ff55;
}

.settings {
	display: flex;
	flex-direction: column;
	overflow: hidden;
}
.settings label {
	display: flex;
	flex-direction: row;
}
.settings label > :is(select, input) {
	margin-left: 0.25rem;
	flex: 1 1 auto;
}
.settings .walker-list {
	overflow: auto;
}

@media print {
	.settings, .walker-highlighter {
		display: none;
	}
}