What code do I use to force widescreen and 360p on Youtube? I'm using the following style in Stylish: https://userstyles.org/styles/101312/dark-youtube-light-blue
The Firefox extension Stylish enables customization of a site's CSS. I'd like to use the same extension to make some tweaks to the Firefox GUI. How can I do this?
It's hard to manipulate websites if they don't have own class for each element. For example, how could I hide the second element from this code below? <p> <p>te</p> ...