Screen resolution defines the number of pixels that can be displayed on a
computer monitor. This number is increasing all the time. However
adoption rates vary, which means that you cannot create your website
for the largest possible size. If you do, many people will not be able to
use your site properly.
Instead, you need to create your site so that it can be optimally displayed
on the largest number of screens, e.g. 99% of all users.
The current accepted standard for doing so is 1024 pixels wide by 768
Again, a good way to check what screen resolution people use for
viewing your website is to analyse your website traffic analytics.
Web Accessibility is a principle that tries to make sure visitors with
disabilities can locate, navigate, read and understand web content. The
main impairments covered by this are:
• Vision, e.g. blindness, colour blindness.
• Hearing, e.g. deafness.
• Physical and speech, e.g. restricted use of limbs.
• Cognitive, e.g. learning difficulties.
There are many content, design and coding techniques that can make
your website easier to use by people with a disability. For instance, a
well-made website can be easily used by a blind person using a program
called a ‘Screen Reader’. This software vocalises content on a page.