JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container4">
  <div class="align_content"></div>
  <div class="align_content"></div>
  <div class="align_content"></div>
  <div class="align_content"></div>
  <div class="align_content"></div>
  <div class="align_content"></div>

  <div class="align_content flex-empty"></div>
  <div class="align_content flex-empty"></div>
  <div class="align_content flex-empty"></div>
  <div class="align_content flex-empty"></div>
  <div class="align_content flex-empty"></div>

</div>

CSS

.container4 {
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  justify-content: space-between;
  align-items: flex-start;
  margin: 0 auto;
  max-width: 1200px;
  background: white;
}

.align_content {
  width: 195px;
  height: 200px;
  margin-bottom: 20px;
  background: blue;
}

.flex-empty {
  height: 0;
  margin: 0;
}