Streamlit Pages, hide the collapse expander

🎈 Using Streamlit
1

Working with the Pages, I’m i’d like to remove the collapse portion of the side pages widget. Suggestions? Here is my current st.markdown

    st.markdown(
        """
        <style>
            [data-testid="stSidebarNav"] {
                background-image: url("data:image/png;base64,%s");
                background-size: 150px;
                background-position: center;
                background-repeat: no-repeat;
                padding-top: 0px;
                padding-bottom: 0px;
                background-position: 75px 10px;
                padding: 20px;
                height: 320px;
            }
        </style>
        """
        % bin_str,
        unsafe_allow_html=True,
    )

Capture