@media only screen and (min-width: 1px) and (max-width: 479px) {

}

@media only screen and (min-width: 1px) {

}

@media only screen and (min-width: 420px) and (max-width: 767px) {

}


@media only screen and (max-width: 479px) {
    .content-form {
        min-width: 300px;
    }
}


@media only screen and (max-width: 639px) {

}


@media only screen and (max-width: 991px) {

}