Font Awesome CDN 4.7, 5.15, 6.5

<!DOCTYPE html>
<html>

<body>
    <div class="container">
        <h1 class="text-center">Font Awesome CDN 5 Example</h1>
        <div class="card">
            <div>
                <i class="fas fa-home"></i>
                <span>Home</span>
            </div>
            <div>
                <i class="fas fa-user"></i>
                <span>User</span>
            </div>
            <div>
                <i class="fas fa-search"></i>
                <span>Search</span>
            </div>
            <div>
                <i class="fas fa-heart"></i>
                <span>Heart</span>
            </div>
            <div>
                <i class="fas fa-camera"></i>
                <span>Camera</span>
            </div>
            <div>
                <i class="fas fa-paper-plane"></i>
                <span>Paper Plane</span>
            </div>
            <div>
                <i class="fas fa-music"></i>
                <span>Music</span>
            </div>
            <div>
                <i class="fas fa-code"></i>
                <span>Code</span>
            </div>
            <div>
                <i class="fas fa-envelope"></i>
                <span>Envelope</span>
            </div>
            <div>
                <i class="fas fa-shopping-cart"></i>
                <span>Shopping Cart</span>
            </div>
            <div>
                <i class="fas fa-file"></i>
                <span>File</span>
            </div>
            <div>
                <i class="fas fa-camera"></i>
                <span>Camera</span>
            </div>
            <div>
                <i class="fas fa-music"></i>
                <span>Music</span>
            </div>
            <div>
                <i class="fas fa-play"></i>
                <span>Play</span>
            </div>
            <div>
                <i class="fas fa-pause"></i>
                <span>Pause</span>
            </div>
            <div>
                <i class="fas fa-stop"></i>
                <span>Stop</span>
            </div>
            <div>
                <i class="fas fa-fast-forward"></i>
                <span>Forward</span>
            </div>
            <div>
                <i class="fas fa-volume-up"></i>
                <span>Volume Up</span>
            </div>
            <div>
                <i class="fas fa-volume-down"></i>
                <span>Volume Down</span>
            </div>
            <div>
                <i class="fas fa-volume-off"></i>
                <span>Volume Off</span>
            </div>
            <div>
                <i class="fas fa-wifi"></i>
                <span>Wifi</span>
            </div>
            <div>
                <i class="fas fa-lock"></i>
                <span>Lock</span>
            </div>
            <div>
                <i class="fas fa-unlock"></i>
                <span>Unlock</span>
            </div>
            <div>
                <i class="fas fa-thumbs-up"></i>
                <span>Thumbs Up</span>
            </div>
            <div>
                <i class="fas fa-thumbs-down"></i>
                <span>Thumbs Down</span>
            </div>
        </div>
    </div>
    <style>
        body {
            background-color: #f8f9fa;
        }
    
        .container {
            margin: 20px auto;
            max-width: 600px;
            padding: 20px;
            box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.12), 0 2px 4px 0 rgba(0, 0, 0, 0.24);
            background-color: #fff;
            border-radius: 8px;
        }
    
        .card {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            justify-items: center;
            margin-top: 20px;
        }
    
        .card i {
            font-size: 24px;
            color: #333;
            padding: 20px;
            transition: color 0.3s ease-in-out;
            box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.12), 0 2px 4px 0 rgba(0, 0, 0, 0.24);
            border-radius: 50%;
        }
    
        .card i:hover {
            color: #ff0000;
            /* Change to your desired hover color */
            cursor: pointer;
        }
    
        .card span {
            display: block;
            text-align: center;
        }
    
        @media (max-width: 576px) {
            .container {
                margin: 10px;
                padding: 10px;
            }
    
            .card {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
        }
    </style>
</body>

</html>