<div class="container">
  <div class="wrapper">
    <div>I am item one</div>
    <div>I am item two</div>
    <div>I am item three and I have a lot more content than the other four items.</div>
    <div>I am item four</div>
    <div>I am item five</div>
  </div>

</div>

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 40px;
  font: 1.2em 'Open Sans', sans-serif;
  background-color: #fff;
}

h1, h2, h3 {
  font-family: 'Averia Serif Libre', cursive;
}

.container {
  background-color: #ddddda;
  height: 720px;
  width: 1280px;
  padding: 260px 140px;
}

.wrapper {
  box-sizing: border-box;
  background-color: #fff;
  padding: 1em;
  display: flex;
  flex-wrap: wrap;
  gap: 1em 2%;
}

.wrapper > div {
  padding: 1em;
  background-color: rgb(133,30,62);
  color: #fff;
  border-radius: 10px;
  flex: 0 0 32%;
}