View source for Template:Infobox/styles.css

.infobox {
	/* In case if tooltips go out of boundary */
	overflow: visible;
	width: 100%;
	max-width: 400px;
	margin-top: 0;
	margin-bottom: 1.6rem;
	background: var( --color-surface-2 );
	border-radius: var( --border-radius--medium );
	border-spacing: 0;
	box-shadow: var( --box-shadow-card );
	font-size: 0.875rem;
	text-align: left;
	display: block;
}

/* Table elements */
.infobox tbody {
	display: flex;
	flex-wrap: wrap;
}

.infobox tr {
	display: flex;
	box-sizing: border-box;
	flex-direction: column;
	padding: 0 10px;
	margin-top: 10px;
}

.infobox th,
.infobox td {
	padding: 0 5px;
}

/* Infobox column */
.infobox .infobox-nocol {
	width: 100%;
	flex-direction: row;
}

.infobox .infobox-nocol th {
	width: 30%;
}

.infobox .infobox-nocol td {
	width: 70%;
}

.infobox .infobox-col1 {
	width: 100%;
}

.infobox .infobox-col2 {
	width: 50%;
}

.infobox .infobox-col3 {
	width: calc( 100% / 3 );
}

.infobox .infobox-col4 {
	width: 25%;
}

.infobox-data {
	min-width: 25%;
}

/* Infobox image */
.infobox .infobox-image {
	overflow: hidden;
	padding: 0;
	margin-top: 0;
	border-radius: var( --border-radius--medium ) var( --border-radius--medium ) 0 0;
}

.infobox-image td {
	padding: 0;
}

.infobox-image--light .image {
	background: #eaecf0;
}

.infobox-image--dark .image {
	background: #2b2f36;
}

.infobox-image .image:hover img {
	transform: scale( 1.1 );
}

.infobox-image img {
	display: block;
	max-width: 100%;
	background: var( --background-color-quiet--hover );
}

/* Neutral background for all transprent SVG */
.infobox-image img[ src$='.svg' ] {
	background: #eaecf0;
}

/* Infobox title */
.infobox .infobox-title {
	width: 100%;
	margin-top: 20px;
	margin-bottom: 5px;
	color: var( --color-base--emphasized );
	font-size: 1.4rem;
	line-height: 1.4;
}

/* Infobox indicator */
.infobox .infobox-indicator {
	margin-top: 0;
	padding: 0;
}

/* Infobox subtitle */
.infobox .infobox-subtitle {
	/* Cancel infobox-title bottom margin */
	margin-top: -5px;
	margin-bottom: 5px;
}

.infobox .infobox-indicator th,
.infobox .infobox-subtitle th {
	display: none;
}

/* Infobox header */
.infobox .infobox-header {
	width: 100%;
	padding-top: 15px;
    border-top: 1px solid;
	border-color: var( --border-color-base );
	margin-top: 15px;
	color: var( --color-base--emphasized );
	font-size: 1rem;
}

/* Infobox value */
.infobox-data th {
	color: var( --color-base--subtle );
	font-size: 0.8125rem;
	font-weight: normal;
	letter-spacing: 0.75px;
}

.infobox-data td {
	font-weight: 600;
}

.infobox-data ul,
.infobox-data ol {
	margin-top: 0;
}

/* Infobox button */
.infobox .infobox-button-bar {
	width: 100%;
	padding: 0;
	margin-top: 25px;
	text-align: center;
}

.infobox-button-bar th {
	padding: 0;
}

/* Collapsible toggle */
.infobox tr:first-of-type .mw-collapsible-toggle {
	position: relative;
	display: none;
	float: none;
}

.infobox tr:first-of-type .mw-collapsible-toggle .mw-collapsible-text {
	position: absolute;
	right: 0;
	display: block;
	padding: 5px 15px;
	background: var( --color-destructive );
	border-radius: 0 var( --border-radius--medium );
	color: #fff;
}

.infobox tr:first-of-type .mw-collapsible-toggle .mw-collapsible-text:hover {
	background: var( --color-destructive--hover );
}

.infobox tr:first-of-type .mw-collapsible-toggle .mw-collapsible-text:active {
	background: var( --color-destructive--active );
}

.infobox tr:first-of-type .mw-collapsible-toggle-collapsed .mw-collapsible-text {
	background: var( --color-primary );
}

.infobox tr:first-of-type .mw-collapsible-toggle-collapsed .mw-collapsible-text:hover {
	background: var( --color-primary--hover );
}

.infobox tr:first-of-type .mw-collapsible-toggle-collapsed .mw-collapsible-text:active {
	background: var( --color-primary--active );
}

.infobox tr:first-of-type .mw-collapsible-toggle:before,
.infobox tr:first-of-type .mw-collapsible-toggle:after {
	content: none;
}

@media only screen and ( max-width: 720px ) {
	.infobox {
		margin-right: auto;
		margin-left: auto;
	}

	.infobox tr:first-of-type .mw-collapsible-toggle {
		display: block;
	}
}
Description	What you type	What you get
Italic	''Italic text''	Italic text
Bold	'''Bold text'''	Bold text
Bold & italic	'''''Bold & italic text'''''	*Bold & italic text*