> For the complete documentation index, see [llms.txt](https://docs.diffy.website/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.diffy.website/features/css-overrides.md).

# CSS overrides

Deal with stretched elements

In order to take a screenshot of the whole page Diffy opens it in a really tall browser window (over 30.000 pixels in height).

In case a website has styles that use `vh` units or percentages of the window height these elements can be stretched. We try to deal with these elements in an automatic fashion but some elements still can take more space than you expect.

In this case, you can override CSS for these elements and set their height in pixels.

[Here is a video](https://vimeo.com/817653551) that shows how to target these elements.