# Youtube embed size, revisited

**URL:** https://meta.discourse.org/t/youtube-embed-size-revisited/85385
**Category:** Support
**Created:** [15.Апрель.2018 19:44:20 UTC](https://meta.discourse.org/t/youtube-embed-size-revisited/85385 "2018-04-15T19:44:20Z")
**Posts on this page:** 1
**Showing post:** 6

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### Author: ![bts](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/bts/32/184556_2.png) [@bts](https://meta.discourse.org/u/bts)
#### Post date: [28.Сентябрь.2018 16:33:13 UTC](https://meta.discourse.org/t/youtube-embed-size-revisited/85385/6 "2018-09-28T16:33:13Z")

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What I posted is custom CSS, which you can add by going to Admin \> Customize, and then adding that to a theme or theme component by clicking “Edit CSS/HTML” and pasting into the Common \> CSS section.

If you don’t already have a custom theme, I think you can either add the CSS directly to your default theme, or make a new theme component, add the CSS there, and then make sure that component is added to the main theme.

This may sound confusing if you’re not yet familiar with Discourse themes / customization at all. Give this a read for more detail and it should start to make sense how it all works! —

> [@Beginner's guide to using Discourse Themes](https://meta.discourse.org/t/beginners-guide-to-using-discourse-themes/91966):
>
> This is a crash course in Discourse theme basics. The target audience is everyone who is not familiar with Discourse themes. If you’ve already used Discourse theme / theme components, this guide is probably not something you need to read. What are themes and theme components? A theme or theme component is a set of files packaged together designed to either modify Discourse visually or to add new features. Let’s start with themes. Themes In general, themes are not supposed to be compatible …

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_[View the full topic](https://meta.discourse.org/t/youtube-embed-size-revisited/85385)._