Principles of Mobile Web Design

Wednesday, November 21, 2007 Labels:
In order for a site to work on a wireless handset, it must adhere to most website accessibility design guidelines, as set out by the W3C. Mobile handsets use WAP technology to browse the Internet. Because of limited screen size, many WAP browsers strip out CSS, and show text in a method similar to how a search engine spider renders a site.

  • Websites using tables for layout will not render well on mobile handsets. The site must use CSS for layout

  • The site must be coded using either XHTML or XML

  • Character encoding should be UTF-8

  • Bear in mind different screen sizes of mobile users. The largest screen size available is probably 640 x 480, whereas the average is closer to 120 pixels

  • The most important information of your site must be right at the top of the page as it can be very time-consuming for browsers to read through

  • Text entry can be quite difficult. Users prefer to select values from a list of choices, such as radio buttons or lists

  • Images should be jpeg or gif

  • Always provide a 'back' button or link, since many phones don't include a back button

  • The maximum total page size recommended is 20 kilobytes

  • Remember that your users are paying a lot of money to access your site, so make sure it is definitely worth their money!


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