Editing Template:Main page/styles.css

/* CSS used for https://www.mediawiki.org/wiki/MediaWiki/Homepage_improvements_2018 : */
.mainpage_row {
	display: flex;
	flex-direction: row;
	flex-flow: row wrap;
	justify-content: space-between;
	padding: 0;
	margin: 0 -5px 0 -5px;
}
.mainpage_box {
	flex: 1;
	margin: 5px;
	min-width: 210px;
	border: 1px solid #a2a9b1;
	padding: 0 10px 10px 10px;
	box-shadow: 0 2px 2px rgba( 0, 0, 0, 0.2 );
}
.mainpage_box h3 {
	/* Reset padding so is equal across skins */
	padding-right: 0;
	padding-top: 0;
	padding-bottom: 0;
	/* Padding left gets overridden by headanchor gadget */
	margin: 0.5em 0;
}
/* Set padding left only if headanchor gadget is not enabled */
.mainpage_box h3:not(.tpl-vheadanchor-heading) {
	padding-left: 0;
}
.mainpage_box h3 .header_icon {
	float: left;
	margin-right: 5px;
}
.mainpage_box .items {
	border-top: 1px solid #CCC;
	padding-top: 0.5em;
}
.mainpage_box p:last-child {
	margin-bottom: 0;
}
.mainpage_boxcontents_small {
	font-size: 95%;
}
/* Style the "other languages" box the same way as other boxes on the main page */
.mw-pt-languages {
	display: block;
	background: none;
	border: 1px solid #CCC;
	box-shadow: 0 2px 2px rgba(0,0,0,0.1);
	width: auto;
}
.mw-pt-languages-label {
	background: none;
	border-right: none;
}

@media screen and (max-width: 719px) {
	.thumb {
		float: none;
	}
	.thumb, .thumbinner {
		margin-left: auto;
		margin-right: auto;
	}
}

/* This offset is specifically tailored to the hackathon particiapnts photo */
/* It's a little bigger in the default skin than required, because timeless has */
/* larger than average margin for thumbs */
@media screen and (min-width: 1400px) {
	html:not(.vector-feature-page-tools-pinned-enabled) .mainpage_row {
		margin-right: 384px;
	}
}

@media screen and (min-width: 1680px) {
	.mainpage_row {
		margin-right: 384px;
	}
}

/* Night mode styles */
@media screen {
	html.skin-theme-clientpref-night .header_icon img {
		filter: invert( 1 );
	}
}

@media screen and (prefers-color-scheme: dark) {
	html.skin-theme-clientpref-os .header_icon img {
		filter: invert( 1 );
	}
}