accesskey="key"     - generate a keyboard shortcut for current element  
autocapitalize="on" - text input is automatically capitalized 
autofocus           - element should be focused on page load
class=""            - allows to select elements for CSS and Javacript
id=""               - select a unique element
contenteditable     - makes an element editable
data-*=""           - allows customized information to be stored in elements
role=""             - to give elements more accessibility
spellcheck="true"   - checks for spelling mistakes
style=""            - add css styling
tabindex="0"        - allows elements to be tabbed through in order
title=""            - gives an element advisory information

onclick
onmouseover
onload
onchange
onfocus