Relative Font Sizes as Part of Compliance with Accessibility
Guidelines

Many CMS programs are working towards greater adherence to accessibility
guidelines, even complete compliance with them. One of the guidelines
is the use of relative font sizes as opposed to fixed sizes. The reason
is that relative font sizes allow anyone, especially the visually impaired,
to increase the font sizes in their browser settings and make pages legible.

There are at least two ways of expressing relative font sizes, by em
or percentage (and there are several ways of expressing them by percentage).
The most time consuming aspect of converting to relative fonts may be
finding the equivalent font sizes and retaining the small changes in font
sizes found in many MDP modules that are expressed in a fixed font size.
To that end, the following conversion table has been provided so that
developers may convert their modules and themes to relative font sizes.
After all, for an MDP site to be completely compliant with accessibility
guidelines, third party modules and themes must also be compliant.

Conversion Table