touch-action: which gestures remain for the browser

In a few sentences

In brief

The rule defines the allowed standard actions when touched.

Useful to know

touch-action indicates which gestures the browser can process on the area: for example, a panoramic movement on a given axis and a two-finger magnification. This is relevant for components with their own touch handling. [1]

Example: .slider { touch-action: pan-y pinch-zoom; }. Vertical movement and magnification remain available, while the application can implement a horizontal gesture. Indiscriminate none over the entire page can take important actions of the reader. The setting must match the actual ; CSS processors by itself does not implement a slider.

Sources

For further detail and to check the information:

[1] MDN — touch-action ↗