JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
  <div class="row">
    <div class="col">
      <div class="content"></div>
    </div>
    <div class="col">
      <div class="content"></div>
    </div>
    <div class="col">
      <div class="content"></div>
    </div>
    <div class="col">
      <div class="content"></div>
    </div>
    <div class="col">
      <div class="content"></div>
    </div>
    <div class="col">
      <div class="content"></div>
    </div>
    <div class="col">
      <div class="content"></div>
    </div>
    <div class="col">
      <div class="content"></div>
    </div>
    <div class="col">
      <div class="content"></div>
    </div>
  </div>
</div>

CSS

.container {
  box-sizing: border-box;
  width: 300px;
}
.container *,
.container *::before,
.container *::after {
  box-sizing: inherit;
}
.row {
  display: flex;
  flex-wrap: wrap;
  padding-top: 10px;
}
.col {
  position: relative;
  max-width: 25%;
  flex: 0 0 25%;
  padding: 0 10px;
}
.content {
  height: 50px;
  margin-bottom: 10px;
  background-color: #6f5499;
}