.float{
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 40px;
    right: 40px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 3px #999;
    z-index: 999999;

    /* centralo*/
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Asegura que el icono sea blanco */
.float i{
    color: #FFF;
}

.float:hover {
    text-decoration: none;
    color: #FFF;
    background-color: #1ab152;
    animation: shake 1s;
    animation-iteration-count: infinite;
}

@keyframes pulse-animation {
    0% {
        box-shadow: 0 0 0 0px #25d3664d;
    }

    100% {
        box-shadow: 0 0 0 20px rgba(0, 0, 0, 0);
    }
}

@keyframes shake {
    0% {transform: translate(0);}
    25% {transform: translate(5px);}
    50% {transform: translate(-5px);}
    75% {transform: translate(5px);}
    100% {transform: translate(0);}
}