Example for Checkpoint
5.3 - Do not use tables for layout unless the table makes sense when linearized.

Otherwise, if the table does not make sense, provide an alternative equivalent (which may be a linearized version).

As more browsers include consistent support for the W3C Cascading Style Sheet Recommendations CSS 1and CSS 2, it will become increasingly proper to do all positioning of text and images on a page using style sheet markup. TABLE should only be used for the proper markup of data that needs to be presented in tabular form. This checkpoint is really just one more example of the requirement to use markup for its intended function, not for the layout "features" it appears to provide. See the examples of checkpoints for Guideline 3 for examples of style commands used for layout.

To Checkpoints for Guideline 5.