mediawiki-extensions-Cite/modules/ext.cite.styles.css

.mw-cite-backlink,
.cite-accessibility-label {
	-moz-user-select: none;
	-webkit-user-select: none;
	-ms-user-select: none;
	user-select: none;
}

/* Isolation to fix references in case of RTL words at the end of a reference */
sup.reference {
	unicode-bidi: -moz-isolate;
	unicode-bidi: -webkit-isolate;
	unicode-bidi: isolate;
}

/* Highlight clicked reference in blue to help navigation */
ol.references li:target,
sup.reference:target {
	background-color: #def; /* fallback */
	background-color: rgba(0, 127, 255, 0.133);
}