How do reduce or eliminate the top margin for streamlit version 1.38?

[yp1]

In streamlit 1.25,the main content area can be changed by the following,
st.markdown(" div[class^=‘block-container’] { padding-top: 2rem; } ", unsafe_allow_html=True)
In streamlit version 1.38, how to get the selectors?

[Faltawer]

How to hide deploy button in streamlit version 1.38?

Hello, the css code of the button change. You can check it : right click, inspect. it’s now "stAppDeployButton st.markdown( r""" <style> .stAppDeployButton { visibility: hidden; } </style> """, unsafe_allow_html=True )

    st.markdown(
        r"""
        <style>
        .stAppViewBlockContainer {
               padding-top: 0rem;
            }
        </style>
        """, unsafe_allow_html=True
    )

[Faltawer]

Streamlit Reveals NEW CSS Styling Trick! (Here’s How to Use)

A good video to find the css