Can someone explain what the contextmenu attribute in HTML5 does?

Question

can someone explain what the the contextmenu attribute does and if it can be used with all the HTML elements and can someone point me to some online demos/examples?

Answer 1

Quoting for you to understand easily:

The contextmenu attribute allows you to display a menu without taking up valuable UI space for the menu. It is a menu which fires on events, such as mouseup or keyup providing a bubble menu which provides options and actions based on those selections.

Source: http://net.tutsplus.com/tutorials/html-css-techniques/html5-globals-and-you/

See official link for more information:

http://www.w3.org/TR/html5/interactive-elements.html