Template:Extension/styles.css

.ext-infobox > tbody > tr > td:first-child {
	vertical-align: top;
}
.ext-infobox > tbody > tr > td abbr {
	white-space: nowrap;
}
.ext-infobox .mw-collapsible-header,
.ext-infobox .mw-collapsible-toggle {
	font-weight: bold;
}
.ext-infobox .mw-collapsible-content {
	margin-top: .2em;
	padding-top: .2em;
}
.ext-infobox caption {
	text-align: center;
}