JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
  <div class="box">
  box1
  </div>
  <div class="box">
  box2
  </div>
  <div class="box">
  box3
  </div>
  <div class="box">
  box4
  </div>
  <div class="box">
  box5
  </div>
  <div class="box">
  box6
  </div>
  <div class="box">
  box7
  </div>
</div>

CSS

.container {
  display: flex;
	flex-direction: row;
	flex-wrap: wrap;
	justify-content: space-around;
	align-items: center;
	align-content: space-around;
  background-color: aqua;
  height: 500px;
}
.box {
  background-color: green;
  padding: 50px;
}