It is important to use properly structured HTML headings when organizing your web content. Think of webpage headings as a table of contents for a story.
Headings are not required on webpages. However, they help break up and organize lengthy informational webpages—improving readability. Proper heading use is not only important for accessibility, it also has search engine optimization benefits, which can help your webpages rank higher in Google’s search results.
A webpage should only have one heading level 1 <h1>. Your page’s title is automatically the <h1> of the webpage, so you do not need to apply that heading level yourself.
Any headings used in your body copy (after your page title) with then be an <h2> or lower. In total you can use headings 2-6. At Michigan Tech, we recommend sticking to headings 2-5 as an <h6> is not typically needed.
If you “nest” headings—in other words if you have a subheading of a heading—you should not skip heading levels. If you have an <h2> and you want to follow it with with a subheading, use an <h3>. If you follow that with a subheading of “equal weight”—use an <h3> again. A subhead of a subhead would be <h4>. Once you are done with subheadings, you can return to <h2>.
Please also keep in mind that sliders titles and sidebar titles are automatically <h2>s. If you choose to nest any headings inside a slider or sidebar, you should begin with the <h3> heading level.
Properly ordering your headings is important. You should not use headings to achieve visual-only results. For instance, if you have an announcement that you want to stand out, but which is not a heading for the content afterward—you should not use a heading. You can instead use bold, italics, or the options in the Styles dropdown like Large, Larger, Largest, Small, or Smaller to style paragraph text to look unique and stand out.
To apply a heading style to a line of text, put your cursor inside of the line of text that you want to turn into a heading and then select a heading level from the left-most dropdown menu in the editor bar.
To learn more about creating special heading styles: