perties over 0.3 seconds */
        }

        .btn:hover {
            color: #7cd2f1; /* Change text color on hover */
            border: 3px solid #7cd2f1; /* Change border color on hover */
            animation: shake .3s linear; /* Apply the 'shake' animation on hover */
        }

        @keyframes shake {
            0%, 
            100% {
                transform: rotate(0); /* Start and end with no rotation */
            }
            
            25%, 
            75% {
                trans