# CSS pseudo-elements

**URL:** <https://forum.inductiveautomation.com/t/css-pseudo-elements/34953>\
**Category:** Ignition Early Access\
**Tags:** perspective\
**Created:** [May 21, 2020, 7:21pm UTC](https://forum.inductiveautomation.com/t/css-pseudo-elements/34953 "2020-05-21T19:21:24Z")\
**Posts on this page:** 1\
**Showing post:** 13

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**Author:** ![dkylep](https://avatars.discourse-cdn.com/v4/letter/d/6de8d8/32.png) [@dkylep](https://forum.inductiveautomation.com/u/dkylep)\
**Post date:** [November 5, 2020, 4:41pm UTC](https://forum.inductiveautomation.com/t/css-pseudo-elements/34953/13 "2020-11-05T16:41:10Z")

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> [@\[NEW\] Theming Update: Major Visual Changes in Perspective](http://forum.inductiveautomation.com/t/new-theming-update-major-visual-changes-in-perspective/34020/52):
>
> Okay, well the reason you need to use the “.psc-” prefix is to avoid potential collision between Perspective Style Class names and classes that we supply by default. For example: I’m using a Button component and I want to create a Style that I think describes how this primary Button should look. I name this Style “ia\_button–primary”. In this case, if we hadn’t attached the “psc-” prefix to the style class, all primary Buttons would use your Style - instead of only the ones you apply that Styl…

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