mediawiki-extensions-VisualEditor/modules/ve-mw/ce/styles/annotations/ve.ce.MWExternalLinkAnnotation.css

/*!
 * VisualEditor ContentEditable MWExternalLinkAnnotation styles.
 *
 * @copyright 2011-2018 VisualEditor Team and others; see http://ve.mit-license.org
 */

.plainlinks a.ve-ce-linkAnnotation.ve-ce-annotation-active.external {
	/*
	 * plainlinks is a MW core class which tries to suppress the normal
	 * external-link appearance; we don't want it to also suppress the
	 * active-link styling that VE apples.
	 * This is applying the same values as ve.ce.LinkAnnotation in VE core.
	 */
	background-color: #e6f1ff !important; /* stylelint-disable-line declaration-no-important */
	padding: 2px !important; /* stylelint-disable-line declaration-no-important */
}

/*
 * .ve-ce-linkAnnotation.ve-ce-annotation-active has as higher specificity
 * than .external, so we need to re-override right padding
 */

.ve-ce-linkAnnotation.ve-ce-annotation-active.external {
	padding-right: 13px;
}