This one modifies the row-widget style.
Code
import streamlit as st
# Add vertical scroll for radio.
st.markdown("""
<style>
.row-widget {
height: 200px;
overflow-y: scroll;
}
</style>
""",
unsafe_allow_html=True)
big_list = [10, 85, 69, 20, 30, 52, 40, 89, 45, 12, 50, 60, 45, 14, 10,
70, 25, 15, 20, 85, 12, 58, 12, 46, 12, 14, 57, 98, 36, 12
]
col = st.columns([1, 1, 4], gap='medium')
with col[0]:
st.write('Select')
rb = st.radio('select', big_list, label_visibility='collapsed', key='rb_1')
with col[1]:
st.text_input('Value selected', value=rb, key='ti_1')
