.spanContainer {
    display: flex;
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
}

.centrar {
    margin-top: 4%;
    line-height: auto;
    text-align: center;
    width: 100%;
    margin-right: 50px;

}


@media only screen and (max-width: 600px) {



    .centrar {
        width: 100%;
        margin-top: 18%;
        display: flex;
        justify-content: center;
        align-items: center;
        margin-right: 0;
    }

}
