@ShaunPour
Posted
The active button property is missing. The buttons are supposed to change to the green shade used for the location for the background color with black text and the cursor property set to the value of pointer when moused over.
You can fix this by setting a new css selector as button (or a class used for all the buttons if you have that) like so:
cursor: pointer;
background: hsl(75, 94%, 57%);
color: hsl(0, 0%, 0%);
}