About Responsive Web Design (RWD)
With the increasing use of mobile devices for internet access there is an increasing demand for website design tailored to mobile and tablet screen formats.
Although modern mobile devices such as phones have excellent web browsers able to view any website, a mobile-optimized website should not require zooming to view the text. So typically this means the main content would be a single column, in a larger point size to be readable at a glance on a phone. Mobile websites often have reduced content, and are navigable with single finger operation to scroll and navigate.
While you could create two separate websites, one designed for narrow screen mobile, another for traditional wider desktop screens, replicating the content across two separate websites would be tedious and time consuming, especially if you had to do this every time you updated the text or images.
So Responsive Web Design is a technique that means your websites respond dynamically to the screen size. Instead of having two separate websites, that is two separate HTML pages, you instead have one web page that can vary its layout, depending on screen size (and resolution) of the device being used to view the website.
Two variants of the same website. the first is how it looks on a wide screen display, the second is for narrow screens such as mobile devices. The text column is narrower, and the pictures and page elements re-arranged to suit a narrow screen.
Responsive 'Retina' or HiDPI Resolution Control
Mobile and tablet devices differ from most desktop web browsers in that they support far higher resolution graphics. Xara supports this completely automatically, and will produce both normal resolution and Hi-DPI or Retina resolution images for all graphics and photos. The website then intelligently uses the correct version of the image depending on the resolution of the browsing device.
Older browsers such as IE8 and earlier do not support RWD, so these will only show the main variant of your website.
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