Hi Serenella,
In ActivePresenter, buttons and check boxes are set up with a hand symbol cursor, by default.
So, when you move the mouse cursor over them in HTML5 output, it will turn into a hand symbol.
In case it is not displayed as you want, you can select buttons or check boxes > Interactivity tab > General section > click Cursor > select one shape from the list.
Best regards,
Thuy