I'm trying to learn stylesheets.
There are a few things in the default ones that I don't understand.
I'll use infopop.css (6.0 br5) as an example.
1) Does this serve any purpose, since there's nothing between the braces {} ?
code:
A:link, A:visited, A:active, A:hover {
}
2) Some of the tags (may not be the right term) are missing values. Is that an error?
code:
A:HOVER {
color: ;
background-color: ;
}
3) Is case significant? For example, in #2, does it matter whether it's "HOVER" or "hover"?