I changed the buttons' color for both the desktop & mobile devices through Look and feel => Style, and entered the CSS code and saved it for both devices. When I look at the Look and feel, the change is visible, but for the preview and in the distributed survey, only the desktop buttons' color is changed (now in blue), not the mobile ones (still red).

CSS code:

Buttons

NextButton,

Buttons

PreviousButton{

background-color: #66D2FF;}

Any ideas on how to solve this?