Today’s web users expect web pages to be increasingly more interactive. To this end, the ability to change page layouts provides your users with a more immersive experience and allows them to consume information more easily, either with a quick gallery view, or a detailed summary view.

Adaptable view is a user interface design pattern which you can use to allow users to manually change visual appearance of content in order to fit their needs. This is usually done by switching styles (in web sites and applications). This way you provide your users with more control over the appearance of content which improves user experience.