@media (max-width:950px) {

    header {
        height: 15%;
    }

    .header_div {
        justify-content: center;
        flex-direction: column;
    }

    .header_gen_selection {
        justify-content: center;
        flex-direction: column;
    }

    header select,
    header input {
        margin-bottom: 10px;
    }

    footer {
        height: 15%;
    }

    .popup_nav_btn {
        margin: 5px;
        width: 20px;
        font-size: 16px;
    }
}

@media (max-width:650px) {

    .popup_body {
        width: 250px;
        height: 700px;
    }


    .popup_image_display img {
        width: 250px;
        height: 250px;
    }

    .popup_header {
        flex-direction: column;
        text-align: center;
    }

    .popup_tabs {
        flex-direction: column;
        align-items: center;
    }

    .popup_tab {
        border: 1px solid rgba(0, 0, 0, 0.483);
        width: 100%;
    }

    .popup_tab_content {
        font-size: 18px;
    }

}