Missing "zero" value with mouse input

[HaHeho]

I just participated in a study setup with webMUSHRA (great tool BTW!!) and noticed an inconvenience. But I assume it could be fixed rather easily.

I noticed that I regularly failed to set a slider to zero when flicking it down and intending to set it to the lowest value. This happens when moving the mouse too quickly and leaving the central "container" which the sliders and play buttons are located in. The registered slider value then stops at a value >0 when the mouse leaves the box. This happened to me quite frequently, since the space below the sliders and before entering the container with the "Previous" and "Next" buttons is quite small.

Maybe the value could be hard-set to zero if the mouse pointer leaves the box at the bottom while dragging a slider. Not sure if that is possible.

Alternatively, increasing the container size below the shown ratings could help to accommodate bigger / faster mouse movements. This may be acceptable since the GUI would still be well usable on regular computer screens and mobile devices (maybe?).

[HaHeho]

In case this is relevant, I was using Firefox 102.5.0esr (64-bit) on MacOS with mouse (not touch pad) inputs.