From https://discuss.streamlit.io/t/version-1-3-0/20130/4

Summary

When using columns for layouts, if a column contains no elements, it is not rendered.

Steps to reproduce

Code snippet:

import streamlit as st

spacing, col = st.columns([9,1])

#if uncommented, it works
#with spacing:
#    st.write('')

with col:
    if st.button('Login'):
        pass

Expected behavior:

A large amount of spacing followed by a button should be rendered

Actual behavior:

No space is created before the button.

Is this a regression?

yes

Debug info

• Streamlit version: 1.3.0
• Python version: N/A
• Using Conda? PipEnv? PyEnv? Pex? N/A
• OS version: N/A
• Browser version: N/a