> For the complete documentation index, see [llms.txt](https://docs.vdo.ninja/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.vdo.ninja/common-errors-and-known-issues/there-are-black-borders-around-the-video-in-obs..md).

# Black borders around the video in OBS

If a black border appears around the video, check that the custom CSS settings in the browser source has not been modified from the default setting:

```css
body { background-color: rgba(0, 0, 0, 0); margin: 0px auto; overflow: hidden; }
```

If you changed the default CSS settings, then you'll need to change them back to get rid of any background.

Also, ideally the width/height in OBS Browser source should be the same aspect ratio as the video. 1280x720 (not 800x600) This will fit the window to the video.

*original issue thread:* [*Reddit: Advice on adding to OBS*](https://www.reddit.com/r/OBSNinja/comments/g1xyoi/advice_on_adding_to_obs/)


---

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