Board Thread:General Discussion/@comment-4896297-20160630194149/@comment-25508186-20160707193255

DEmersonJMFM wrote: [ ... ] but, for whatever reason, the change wasn't being applied [ ... ] That's because you are using the same selector (.WikiaRail .module.community-page-entry-point-module) as the one used in InsightsModule.scss which styles the community page module. Since this stylesheet comes after site CSS in the head tag, it overrides anything it can above it. Same selectors can be overridden, so your site-wide CSS for that specific selector is ignored

Use of !important site-wide is considered bad practice, so I would suggest that you change the specificity of your declarations. Ids have higher specificity than classes, so you can simply use #WikiaRail .module.community-page-entry-point-module without using !important

See also: Cascading Style Sheets, MDN