CSS Grid layout with Gap property

index.html

<div class="section">
  <h1>CSS Grid Layout with Gap</h1>
  <div class="grid-container">
    <div class="grid-item">1</div>
    <div class="grid-item">2</div>
    <div class="grid-item">3</div>
    <div class="grid-item">4</div>
    <div class="grid-item">5</div>
    <div class="grid-item">6</div>
  </div>
</div>

style.css

@import url("https://fonts.googleapis.com/css2?family=Rowdies&display=swap");

.grid-container {
  height: 100%;
  padding: 2rem;

  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  place-items: center;
  /*===== CREATING A GAP OF 1REM ===== 
  ======= BETWEEN GRID ITEMS ====== */
  gap: 1rem;
}

.grid-item {
  width: 200px;
  height: 200px;
  background: #ea5b4853;
  border: 17px outset tomato;
  font-size: 32px;

  display: flex;
  justify-content: center;
  align-items: center;
}

/* ======================== */
/* OTHER STYLES */

html,
body {
  height: 100%;
}

body {
  font-family: "Rowdies", cursive;
  color: #262626;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.section {
  height: 100%;
  border: 16px ridge #ff6550;
  background: #ffe7e7;
  overflow: auto;
}

h1 {
  text-align: center;
}