I'm not sure where to put the link to the next page. I have a total of four buttons, and I want the user to be able to go the next page if he/she clicks the correct answer. I tried this code but it only goes to the next page when you click the number, not the entire button.
<button class="abtn"><a href="play.html" onmousedown="button.play()">2</button>
<button class="btn" onclick="button.play()" type="button">5</button>