/* Target only the tags with the exact text "Marketing Theory" */
span.t-feed__post-tag.t-uptitle.t-uptitle_xs:contains("Marketing Theory") {
    display: none !important;
}

/* Target only the tags with the exact text "Latest" */
span.t-feed__post-tag.t-uptitle.t-uptitle_xs:contains("Latest") {
    display: none !important;
}