Which of the following is not a valid html tag?

Which of the following sizes the width of a table to half of its containing object?

True or False: Checkboxes are used to select multiple choices whereas with radio boxes only one choice can be selected when the submit button is clicked.

Which HTML element is typically used for positioning block-elements?

Which HTML tag creates the largest header text size?

Which of these is not a HTML tag?

If an element contains 12pt text, a length of 2em equals ____.

The ____ attribute can be used to identify where to download a plug-in.

The check box control is created using the _____ element.

The padding property uses the ____ property code.

The most widely supported version of xhtml is xhtml ____.