volumetric-regimes-book/command-line/css/baseline.css

/* This baseline.css stylesheet is derived from: https://gist.github.com/julientaq/08d636a7a2b5f2824025256de0fca467 */
/* Thanks a lot to julientaq for publishing it! */

:root {
	--baseline: 18px;
	--baseline-color: blue;
}

.pagedjs_page {
	/* grid baseline */
	background: 
		repeating-linear-gradient( 
			white 0, 
			white calc(var(--baseline) - 1px), var(--baseline-color) var(--baseline));
	background-size: cover;
	background-repeat: repeat-y;
	/* start of the first baseline: half of the line-height: 18px / 2 = 9px */
	background-position-y: 7px;
}