The default Text Setting in the WordPress editor is Paragraph. By default text in the text editor will be Paragraph until you change the setting to a semantic heading. To locate headings, select the drop down menu to view your choices.
Configure Text Settings
- Put your cursor on a new line in the text editor.
- Locate the Paragraph drop down, then select the Heading level. Your headings should follow semantic numbering.
- Type or paste your heading.
- You can also simply click on the text you want to make a to and the select a Text Setting.