Heading pseudo-classesThe :heading and :heading() CSS pseudo-classes match headings of varying levels. The :heading pseudo-class matches any heading (<h1> through <h6>). The :heading() selector matches any of the given levels. For example, :heading(1, 2) matches headings level 1 and 2.selectorsSelectorslimitedhttps://drafts.csswg.org/selectors-5/#headingshttps://developer.mozilla.org/docs/Web/CSS/Reference/Selectors/:headingcss.selectors.headingcss.selectors.headingfunctionhttps://nowyoucanuse.com/features--heading-selectors.html