===Nested tags===
Nest your HTML tags properly, pages and tables and elements have should be '''nested''' in a specific proper order, meaning that the tag opened most recently is always the next tag to close. Example if you open a '''SPAN''' inside a '''DIV''' make sure you close the '''SPAN''' before you close the '''DIV'''. [[File:A11y-nested.png|thumb|none|400px|Nest tags in proper order.]]
===Bold and Italics===
