JSFiddle - React, Tailwind, and code Playground

HTML

<div class='block'>

</div>
<div class='block'>

</div>

CSS

*{
  margin:0
  padding:0
  border-width:0px;
}

.block{
  width:50px;
  height:50px;
  background:red;
  display:inline-block;
  margin-right:20px;
  vertical-align:top;
}