:root 

.bg_icono {
    color: #6d14d3;
}
.icono {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    margin: auto;
    width: 4.5rem;
}
img.img-icono {
    margin-bottom: .5rem!important;
}

.timeline > li .timeline-image {
    background-color: #6d14d3;
}

.btn_purple {
    background-color: #6d14d3;
    color: #ffffff;
}

.btn_purple:hover {
    background-color: #590fae;
    color: #ededed;
}