<div class="container">
  <div class="item item--1">
    Item 1
  </div>
  <div class="item item--2">
    Item 2
  </div>
  <div class="item item--3">
    Item 3
  </div>  
</div>
.item--3 {
  place-self: end center;
}

/* ETC (Formatting only): */

body {
  margin: 1.5em;
  font-size: 130%;
  font-family: sans-serif;
  background: #F2F0EC;
  color: #2E2C08;
}

.container {
  border: 10px solid #2E2C08;
  background: white;  
  padding: 1em;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1em;
  height: 5em;    
}

.item {
  padding: 0.5em;
  text-align: center;
  color: #2E2C08;
  background: #e5e3de; 
  font-weight: bold;
  margin-top: 0;
  margin-bottom: 0;
  text-align: center;
}

.item {  
  padding: 1em;
  text-align: center;
  flex: 1;
  height: 5em;
  width: 5em;  
}

.container {
  border: 10px solid #2E2C08;
  background: white;  
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  height: 10em;  
}

.item--3 {
  color: white;
  background: #2E2C08; 
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

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