(design, Web) Approach to web design that makes Web pages render well on a variety of devices and screen sizes to ensure usability and satisfaction.

Adaptive web design promotes the creation of multiple versions of a web page to better fit the user's device, as opposed to a single static page which loads (and looks) the same on all devices or a single page which reorders and resizes content responsively based on the device/screen size/browser of the user.

(or tableless web layout) a web design method that avoids the use of HTML tables for page layout control purposes.