.grid-container{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:22px}.grid-item{background-color:#3498db;color:#fff;padding:20px;text-align:center}.flex-container{display:flex;flex-wrap:wrap;justify-content:space-between;margin-bottom:22px}.flex-item{width:calc((100% - 20px) / 3);background-color:#e74c3c;color:#fff;padding:15px;margin-bottom:10px;box-sizing:border-box}