Make Instagram layout to 4 posts on each row

InstagramGridLayout.css

/* main section */
.cGcGK,
section._1SP8R {
    max-width: none !important;
}

.cGcGK > div:nth-child(2) > div:nth-child(1) {
    display: flex !important;
    flex-flow: row wrap !important;
    justify-content: center !important;
    /*max-width: none !important;*/
}

section._9eogI {
    max-width: 100% !important;
    padding-left: 10px !important;
    padding-right: 10px !important;
    padding-top: 10px !important;
}

/* each post */
article._8Rm4L {
    margin: 10px !important;
}

@media (max-width: 1600px) {
    article._8Rm4L {
        flex: 0 0 300px !important;
        width: 300px !important;
        max-width: 300px !important;
    }
}

@media (min-width: 1601px) {
    article._8Rm4L {
        flex: 0 0 400px !important;
        width: 400px !important;
        max-width: 400px !important;
    }
}

/* suggestion, copyright under stories, profile */
div._6Rvw2:nth-child(3),
div.SkY6J,
div.m0NAq,
.MnWb5 {
    display: none;
}