# Custom header and css

**URL:** <https://meta.discourse.org/t/custom-header-and-css/258920>\
**Category:** Development\
**Created:** [March 21, 2023, 4:37pm UTC](https://meta.discourse.org/t/custom-header-and-css/258920 "2023-03-21T16:37:04Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Canapin](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/canapin/32/119591_2.png) [@Canapin](https://meta.discourse.org/u/Canapin)\
**Post date:** [March 21, 2023, 9:07pm UTC](https://meta.discourse.org/t/custom-header-and-css/258920/2 "2023-03-21T21:07:47Z")

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Hello 👋

Can you share your CSS modifications?

Usually, Discourse will override our rules if our selectors aren’t precise enough.

For example, if Discourse has a rule like `body .category { line-height: 1 }` and we write in our own theme `.category { line-height: 2 }`, then it will be overriden by the first rule because it’s more precise with the additional `body` selector.

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_[View the full topic](https://meta.discourse.org/t/custom-header-and-css/258920)._