I\'m wondering how to ignore a parent style and use the default style (none). I\'ll show my specific case as an example but I\'m pretty sure this is a general question.
There are a bunch of values that can be used to undo CSS rules: initial, unset & revert. More details from the CSS Working Group at W3C:
https://drafts.csswg.org/css-cascade/#defaulting-keywords
As this is 'draft' not all are fully supported, but unset and initial are in most major browsers, revert has less support.