> you can display the menu but once you release the button it dissapear

If you look at the inspiration from twitter (linked at the top of the post) you'll see that is by design.

For me it doesn't work on Chrome android.

As soon as I want to select something and move my finger slightly, the menu disappears, although I am still with my finger on the button

I think I fixed the Android issues, can you give it another try?

Can confirm, it works well in Brave on Android. You do have to tap to initialize the line -- and then tap on the line and drag -- in early examples, but the completed example works well.

Ah sorry, I don't have any Android devices so I haven't tested it on that platform!

As a tangent, it's sad that that mentality is often used when designing actual systems for end users! (not relevant here because this is just a fun project)

Thanks for understanding!

You can watch a video version of it here: https://www.youtube.com/watch?v=1VgrdLfDozo