div.galeria {
    margin: 7px;
    border: none;
    float: left;
    width: 265px;
}



/* RESPONSIVE
=========================================================================

 Móviles en horizontal o tablets en vertical
------------------------------------------------------------------------- */
@media (min-width: 768px) {
    div.galeria {
        margin: 7px;
        border: none;
        float: left;
        width: 163px;
    }
}

/* Tablets en horizonal y escritorios normales
------------------------------------------------------------------------- */
@media (min-width: 1024px) {
    div.galeria {
        margin: 7px;
        border: none;
        float: left;
        width: 290px;
    }
}

/* Escritorios muy anchos
------------------------------------------------------------------------- */
@media (min-width: 1200px) {
    div.galeria {
        margin: 7px;
        border: none;
        float: left;
        width: 290px;
    }
}

/* Tablets en horizonal y escritorios normales
------------------------------------------------------------------------- */
@media (min-width: 768px) and (max-width: 1199px) {
    div.galeria {
        margin: 7px;
        border: none;
        float: left;
        width: 236px;
    }
}

/* Móviles en horizontal o tablets en vertical
------------------------------------------------------------------------- */
@media (max-width: 767px) {
    div.galeria {
        margin: 7px;
        border: none;
        float: left;
        width: 213px;
    }
}

/* Móviles en vertical
------------------------------------------------------------------------- */
@media (max-width: 480px) {
    div.galeria {
        margin: 7px;
        border: none;
        float: left;
        width: 169px;
    }
}

div.galeria img {
    width: 100%;
    height: auto;
}