View source for Module:ButtonLua/styles.css

.t-button .cdx-icon {
	/* HACK: This is a hack to bypass the CSS sanitizer */
	--t-button-icon-background: image-set(var(--t-button-icon-url) 1x);
	background: var(--t-button-icon-background);
	background-size: contain;
}

/* Fix Citizen incorrect CSS override */
.t-button.cdx-button .cdx-icon {
	padding: 0;
}

.t-button.cdx-button .cdx-icon.cdx-icon--small {
	min-width: 14px;
	min-height: 14px;
	width: 1rem;
	height: 1rem;
}

.t-button.cdx-button .cdx-icon.cdx-icon--medium {
	min-width: 20px;
	min-height: 20px;
	width: 1.25rem;
	height: 1.25rem;
}