Volume Slider should be vertical

When hovering over the volume icon in the Deezer desktop app / on the website, a slider appears to increase/ decrease the song’s volume.

However, the current slider is horizontal which means the user has to adjust the cursor’s positioning both on the X and Y axis to change the volume adequately. If the slider were vertical (positioned right above the volume icon), the user would only have to adjust the cursor along the Y axis and can therefore change volume much quicker, easier and smoother.

This change is tiny, but would improve the UX quite a bit in my opinion, since the volume slider is a very frequently used feature. And that can add up really quickly.