.pulse-button {
    position: fixed; /*permite poner de manera fija el contenido*/
    right:  22px;
    bottom: 25px;
    background: rgb(2, 73, 89);
    z-index: 3;

    width: 48px;
    height: 48px;
    border: none;
    box-shadow: 0 0 0 0 rgba(0, 150,255, 0.7);
    border-radius: 50%;
    /*background-color: #e84c3d;*/
    background-image: url(https://telcotronics.com/img/APP_SIGMA48.png);
    background-size:cover;
    background-repeat: no-repeat;
    cursor: pointer;
    -webkit-animation: pulse 1.25s infinite cubic-bezier(0.66, 0, 0, 1);
    -moz-animation: pulse 1.25s infinite cubic-bezier(0.66, 0, 0, 1);
    -ms-animation: pulse 1.25s infinite cubic-bezier(0.66, 0, 0, 1);
    animation: pulse 1.25s infinite cubic-bezier(0.66, 0, 0, 1);
}

.pulse-button:hover 
{
    -webkit-animation: none;
    -moz-animation: none;
    -ms-animation: none;
    animation: none;
}
.ocultar{
    display: none;
}