Using W3C's CSS validation service, you might see Warnings about your CSS stylesheet such as:
"You have no background-color with your color"
The link above gives a simple overview of the issue and the "fix".
Basically, you should ensure that each style that uses a "color" attribute has a corresponding "background-color" attribute at the same level. For styles that need a transparent background colour, use "inherit".
This is the official blog of

We aim to post comments (and possibly solutions) to some of the more interesting IT Support issues we come across in our daily travels around the South Hams of Devon.
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