title: how to get rid of spaces between rows of buttons?
body: <p>Using react components to create 100 rows of 100 button boxes.  I want them to be touching with no gaps between the rows but even when I get take the rows and button boxes out of divs, these gaps do not change.</p>
  <p>It doesn't seem to be a margin or padding thats creating the space, so I'm unsure how to solve this.</p>
  <p><strong>EDIT</strong> changing the line-height to 0 fixed my issue !! Thank you @
  Håken Lid !</p>
  <p><a href="https://i.stack.imgur.com/AaWvg.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/AaWvg.png" alt="enter image description here" /></a></p>