.folletos {
    height: 250px;
    border: solid 2px;
}
#pdf1 {
    margin-right: 3%;
}
#pdf2 {
    margin-left: -140px; 
    margin-top: 150px;
}
#pdf3 {
    margin-left: -70px;
}
#pdf4 {
    margin-left: -130px;
    margin-top: 150px
}
#pdf5 {
    margin-left: -70px
}
#pdf6 {
    margin-left: 490px;
    margin-top: -275px
}
@media only screen and (max-width: 1199px) and (min-width: 991px)  {
    #pdf1 {
        margin-right: 3%;
    }
    #pdf2 {
        margin-left: -160px; 
        margin-top: 150px;
    }
    #pdf3 {
        margin-left: -120px;
    }
    #pdf4 {
        margin-left: -130px;
        margin-top: 150px
    }
    #pdf5 {
        margin-left: 250px;
        margin-top: -425px
    }
    #pdf6 {
        margin-left: 350px;
        margin-top: -320px
    }

}
@media only screen and (max-width: 990px) and (min-width: 673px)  {
    #pdf1 {
        margin-right: 3%;
    }
    #pdf2 {
        margin-left: -140px; 
        margin-top: 150px;
    }
    #pdf3 {
        margin-left: -70px;
    }
    #pdf4 {
        margin-left: -130px;
        margin-top: 150px
    }
    #pdf5 {
        margin-left: -70px
    }
    #pdf6 {
        margin-left: 490px;
        margin-top: -275px
    }
}
@media only screen and (max-width: 666px) and (min-width: 456px)  {
    #pdf1 {
        margin-right: 3%;
    }
    #pdf2 {
        margin-left: -140px; 
        margin-top: 150px;
    }
    #pdf3 {
        margin-left: -70px;
    }
    #pdf4 {
        margin-left: 0px;
        margin-top: 30px
    }
    #pdf5 {
        margin-left: -140px;
        margin-top: 180px
    }
    #pdf6 {
        margin-left: -60px;
        margin-top: 30px
    }
}