This image shows the same web site displayed in five different mobile browsers.
- Some work better than others
- All devices display HTML and graphics
- Some of the devices, like Android and iPhone, automatically assume they are displaying an 800 x 600 screen. To read the screen the visitor must zoom in
- The window size can vary from 320x160 to 600x480, or even landscape mode of 480x600
- Beyond the screen size, there are different levels of support for visual elements such as styles, dynamic content (JavaScript), and images.