html, body { background-image: url(https://w.wallha.com/ws/4/Vlw87L9q.png); } main.grid-container { display: grid; grid-template-columns: repeat(2, 1fr); grid-gap: 20px; padding: 20px; } .category { border: 1px solid #ccc; padding: 20px; } .category h2 { margin-top: 0; } .game { margin-top: 20px; text-align: center; } img { display: block; margin: 0 auto; max-width: 100%; height: 600; border-radius: 10px; }