Updating html; unfortunately the layout isn't quite right. Will need to have divs of 3 horizontal buttons (the numberals and the '.') and have the operator buttons be in their own vertival div, to allow for a larger '=' button. So we'll need a
<div horizontalLayout>
  <div of numbers>
    3x<numeral row>
  </div of numbers>
  <div of horizontally laid out operator />
</div horizontal layout>

For now, just going to stick with this and try to see why the html isn't showing up at all. :D