Responsive WordPress themes respond by smoothly adjusting page layouts to the resolution and size of the screen they’re being displayed on, which offers better readability and usability on smaller screens such as smart phones.
It can be difficult to design a website to fit all the different mediums people now use to get online, like computers, smartphones, tablets, etc. Since screens are changing all the time these days, building a website for each one is pretty impractical. But you can make different screen sizes work for you with good responsive WordPress themes, as an alternative to creating additional device-specific mobile versions of the site.
Many advanced web technologies, like html5 boilerplate, fluid proportion-based grids, css3 media queries, dynamic image scaling, type tester, bootstrap, jQuery mobile, and Modernizer, work together in a synergy to make responsive design possible. While it may be very complicated to build from scratch, using a CMS like WordPress means you can choose from a wide variety of pre-made responsive WordPress themes to construct your website quickly and easily.