.actionbutton-fixed {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    text-align: center;
    padding: 15px 0;
    z-index: 9999;
    text-decoration: none;
    font-weight: bold;
    font-size: 20px;
    background-size: 300% 300%;
    animation: actionbuttonBackgroundMove 3s linear infinite alternate;
    transition: all 0.3s ease-in-out;
}

.actionbutton-animated-text {
    animation: actionbuttonZoomInOut 1.5s infinite alternate;
    display: inline-block;
}

@keyframes actionbuttonBackgroundMove {
    0% { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}

@keyframes actionbuttonZoomInOut {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

@media (max-width: 768px) {
    .actionbutton-fixed {
        font-size: 18px;
        padding: 10px 0;
    }
}