CSS @supports

<!DOCTYPE html>
<html>
<head>
    <style>
        .dukungan-fitur {
            padding: 20px;
            background: #fee2e2;
            color: #991b1b;
            font-family: sans-serif;
            border-radius: 8px;
        }
        @supports (display: grid) {
            .dukungan-fitur {
                background: #dcfce7;
                color: #166534;
            }
        }
    </style>
</head>
<body>
    <div class="dukungan-fitur">
        Peramban ini sepenuhnya mendukung CSS Grid Layout!
    </div>
</body>
</html>