JSFiddle - React, Tailwind, and code Playground

by jimousse

HTML

<div class="container">
  <div class="left">
    <div class="floater"></div>
  </div>
</div>

CSS

.container {
  display: flex;
  width: 100px;
  outline: 1px solid black;
  height: 15px;
}

.left {
  flex-grow: 1;
  background-color: yellow;
}

.floater {
  width: 100%;
  height: 100%;
  background-color: blue;
  display: inline-block;
}