* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}


#main-photo {
    margin: 0;
    padding: 0;
    width: 100%;
}

#main-photo img {
    width: 100%;
}

.main {
    margin-top: 3.5em;
    width: 85%;
    margin-left: 7%;
    margin-bottom: 3em;
}

.titulo{
    font-size: 1.5em;
    font-family: Arial Black, Arial, Helvetica, sans-serif;
    color: #AFB0B4;
    margin-bottom: 1.5em;
}

.texto-principal{
    line-height: 1.3em;
    margin-bottom: 1.5em;
}

.imagenes-main {
    margin: 2em 0;
    display: flex;
    flex-direction: column;
    align-content: center;
    
}

.imagenes-main img {
    width: 60%;
    margin: 5% 20%;
}

.titulo-img{
    font-family: Arial Black, Arial, Helvetica, sans-serif;
    color: #084F96;
    font-size: 1.4em;
    margin-top: 1.5em;
}

.descripcion{
    width: 90%;
    margin-left: 5%;
    line-height: 1.4em;
}

.texto-gris{
    color: #AFB0B4;
    font-style: italic;
    font-size: 1.3em;
    font-weight: bold;
}

@media only screen and (min-width: 916px) {

    .main {
        width: 70%;
        margin-left: 15%;
    }

    .imagenes-main {
        flex-direction: row;
        justify-content: space-between;
    }

    .primero {
        margin-left: 5%

    }

    .titulo-img{
        margin-bottom: 1em;
    }

    .imagenes-main #img1 {
        width: 80%;
        margin: 0;
        margin-left: 5%
    }


    .imagenes-main img {
        width: 65%;
        margin-left: 5%;
    }

    .texto-principal, .descripcion{
        font-size: 1.1em;
    }

}

@media only screen and (min-width: 1550px) {

    .titulo{
        font-size: 35px
    }

    .texto-principal{
        font-size: 20px;
    }

    .titulo-img{
        font-size: 27px;
    }

    .descripcion{
        font-size: 20px;
    }

    .texto-gris{
        font-size: 27px;
    }
}