Possible the color when you hover over the st.sidebar?

[valeriofiorentini]

Hi everyone! I wanted to ask if you knew how I could also hover over the st.sidebar.expander, st.write and/or checkbox elements. For example:

    with st.sidebar.expander("Holidays"):

    evaluate = st.sidebar.checkbox(
        "Evaluate my model", value=True, help=readme["tooltips"]["choice_eval"]
    )

st.checkbox(
“Launch forecast”,
value=False,
help=readme[“tooltips”][“launch_forecast”],
):

st.error(“Please check at least ‘Evaluation’ or ‘Forecast’ in the sidebar.”)

st.write(“# 3. Impact of components and regressors”

[Caroline]

Hey @valeriofiorentini,

Here’s an example for st.expander:

import streamlit as st

with st.expander("Expand me"):
    st.write("Hello world")

css=f'''
.streamlit-expander:hover {{
    background-color: blue;
}}
'''
st.markdown(f'<style>{css}</style>', unsafe_allow_html=True)