JSFiddle - React, Tailwind, and code Playground

HTML

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

CSS

body {
  width: 100%;
  height: 10vh;
  margin: 0;
}

div {
  height: 100%;
}

.container {
  width: 100%;
}

.container>div {
  overflow-y: hidden;
  display: flex;
  width: 100%;
}

.container>div>div {
  flex: 1;
  /* min-width: 20%; */
  display: inline-block;
  margin: 0 0.5%;
  background: red;
}