| <section:aside> | Creates an <aside> element and related <h2>, <h3>, ..., <h6> element based on nesting level. |
| <section:nav> | Creates a <nav> element and related <h2>, <h3>, ..., <h6> element based on nesting level. |
| <section:section> | Creates a <section> element and related <h2>, <h3>, ..., <h6> element based on nesting level. |