ميدياويكي:Gadget-CollapsibleNav.css

.collapsible-nav > .mw-collapsible-toggle {
	float: none;
	cursor: pointer;
}

.collapsible-nav > .mw-collapsible-toggle::before {
	display: inline-block;
	width: 12px;
	content: url(/w/resources/src/mediawiki.icon/images/arrow-expanded.svg?d0685);
}

.collapsible-nav > .mw-collapsible-toggle-collapsed::before {
	content: url(/w/resources/src/mediawiki.icon/images/arrow-collapsed-ltr.svg?40e9a);
}