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I wrote a rule that should change the color and nothing happens, even though I can see it sitting right there in the file.
What you'll have at the end
The rule you meant to win is the one that applies, without a single !important added
You need
A rule in your own stylesheet that's supposed to change a property on an element and visibly isn't in the rendered page, plus access to that element's markup and every rule that could match it.
Not covered
This does not cover a fight where one side already carries !important, or a conflict between different cascade origins; it only covers two ordinary author rules of different weight.
Checked 20 Aug 2026
Part of the CSS cookbook