Template:Tennis court infobox/styles.css

.infobox#tennis-court {
	background: ghostwhite;
	border-color: #000;
}
.infobox#tennis-court > tbody > tr:first-child {
	background: #00BFFF;
}
.infobox#tennis-court > tbody > tr:nth-child(2n+3) {
	background: #19C5FF;
}