On the play page the buttons that submit the user answer are by default disabled because there's no value in the form, however the hover is still active even when the button is disabled. As a consequence the button's style will change upon hovering (gaining the focus effect and a darker text colour)
Solution:
Ensure hover is in sync with the button, i.e when the button is disabled, the hover is disabled and viceversa.
Improve styling for the buttons (similar to the way Google does)
Remove the colour from the font-awesome icon in the glass button as the colour is placed on the button
On the play page the buttons that submit the user answer are by default disabled because there's no value in the form, however the hover is still active even when the button is disabled. As a consequence the button's style will change upon hovering (gaining the focus effect and a darker text colour)
Solution: