Get your own website Result Size: 625 x 565
x
 
<!DOCTYPE html>
<html>
<head>
<style>
body {
  background-color: #E7E9EB;
}
#container { 
  width: calc(100% - 11px);
  height: 350px;
  background-color: #FFFFFF;
  margin: 5px;
  border: solid black 1px;
  display: flex;
  flex-wrap: wrap;
  place-content: end end;
}
.bluediv {
  background-color: lightblue;
  height: 50px;
  aspect-ratio: 1;
  margin: 2px;
}
</style>
</head>
<body>
<h1>The place-content property</h1>
<div id="container">
  <div class="bluediv"></div>
  <div class="bluediv"></div>
  <div class="bluediv"></div>
  <div class="bluediv"></div>
  <div class="bluediv"></div>
  <div class="bluediv"></div>
  <div class="bluediv"></div>
  <div class="bluediv"></div>
  <div class="bluediv"></div>
  <div class="bluediv"></div>
  <div class="bluediv"></div>
  <div class="bluediv"></div>
  <div class="bluediv"></div>
  <div class="bluediv"></div>
  <div class="bluediv"></div>