.holaSoy
{
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background-image: url(../images/welcome/fondoindex.jpg);
    background-position: top;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
    background-color: rgb(34, 37, 41);
}

.seccioncontacto 
{
    background-image: url(../images/welcome/fondocontacto.jpg);
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    background-color: rgb(34, 37, 41);
}

.text-justify {
    text-align: justify;
  }

.flotante {
    display:scroll;
    position:fixed;
    bottom:40px;
    right:40px;
    opacity: .8;
}