app.py

import streamlit as st

x = st.slider('Select a value')
st.write(x, 'squared is', x * x)

st.info("This is an info message")

st.markdown("This is a markdown message")

st.markdown("""
| Column 1 | Column 2 | Column 3 |
|----------|----------|----------|
| Value 1  | Value 2  | Value 3  |
| Value 4  | Value 5  | Value 6  |
| Value 7  | Value 8  | Value 9  |
""")