Template:Page or Section/Styles.css

/* [[Category:Template Styles]] */
.zw-pageorsection__section-text {
	display: none;
}

/* .mw-heading2 selector is in anticipation of upcoming HTML changes in MediaWiki 1.43 https://www.mediawiki.org/wiki/Heading_HTML_changes */
h2 ~ .zw-pageorsection__section-text,
.mw-heading2 ~ .zw-pageorsection__section-text {
	display: inline;
}
h2 ~ .zw-pageorsection__lede-text,
.mw-heading2 ~ .zw-pageorsection__lede-text {
	display: none;
}