.full-height {
    height: 100vh;
}

.flex-center {
    align-items: center;
    display: flex;
    justify-content: center;
}

.position-ref {
    position: relative;
}
.principal {
    background-image: url(../img/easy_camion_furgon.jpg);
    background-repeat: no-repeat;
    background-position: 50% 60%;
    background-attachment: scroll;
    background-size: cover;
    height: 100%;
    margin: 0;
    padding-top: 60vh;
}

.imagen {
    text-align: center;
}

.title {
    font-size: 84px;
}

.links > a {
    color: #636b6f;
    padding: 0 25px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .1rem;
    text-decoration: none;
    text-transform: uppercase;
}

.m-b-md {
    margin-bottom: 30px;
}

.padre {
    position: relative;
}

.hijo {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    width: 50%;
    height: 30%;
    margin: auto;
}