How can I do to set font size of text in st.columns.subheader?

[Alice1]

with st.container(border = True):

  col1, col2 = st.columns(2, gap = 'medium', vertical_alignment = 'center')

  with col1: 
    
    col1.subheader('Name of enterprise')
    col1.metric('Name', 'Banana Games')
    col1.metric('CNPJ', 123)    
    
  with col2:
    
    col2.subheader('Name of business person')        
    col2.metric('Name', 'Alice String')
    col2.metric('Age', 28)

[mathcatsand]

st.title, st.header, and st.subheader are just wrappers around markdown. Each of them can be rendered equivalently with st.markdown as follows (plus a few more sizes available in markdown):

import streamlit as st

st.markdown("# AAA")
st.title("AAA")

st.markdown("## BBB")
st.header("BBB")

st.markdown("### CCC")
st.subheader("CCC")

st.markdown("#### DDD")
st.markdown("##### EEE")
st.markdown("###### FFF")
st.markdown("GGG")

[Alice1]

Good idea! Thanks!