Learn how to use the "start" and "value" HTML attribute to specify list numbers in ordered lists.
The table cell attribute "headers" allows you to associate multiple header cells which is useful for tables with rows or columns spanning multiple cells.
inertHTML attribute enables you to make entire web page areas inaccessible.
Use the :indeterminate CSS pseudo-class to match different elements with an indeterminate state.
dialogelement is more than a display toggle because it provides better focus handling,
inertfunctionality and closes on keypress.