JSFiddle - React, Tailwind, and code Playground

by Soviut

HTML

<div class="row">
  <div class="col col-first">
    first
  </div>
  
  <div class="col">
    second
  </div>
</div>

CSS

.row {
  display: flex;
  width: 100%;
}

.col-first {
  flex-grow: 1;
}