Any tables in .md files are rendered with minimum width. Because of this, text with white space is always wrapped and just looks ugly. I found no way to edit the css directly, only with custom css injection using addons.

Is there any reason the css of tables looks that way?

Markdown

header | this is a really long header, because we want to use really long text
 ----- | --------------------------------
check  | This is a custom description and requires lots of text

rendered