@keyframes pulse {
    25% {
        transform: scale(1.05);
    }

    75% {
        transform: scale(.99);
    }
}
.read_goend_button:hover,.read_gotop_button:hover,.read_book_button:hover {
    animation-name: pulse;
    animation-duration: 1s;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
    box-shadow: none;
}