Layout

Tabs

tab1, tab2, tab3 = st.tabs(["Cat", "Dog", "Owl"])

with tab1:
    st.header("A cat")
    st.image("https://static.streamlit.io/examples/cat.jpg", width=200)
with tab2:
    st.header("A dog")
    st.image("https://static.streamlit.io/examples/dog.jpg", width=200)
with tab3:
    st.header("An owl")
    st.image("https://static.streamlit.io/examples/owl.jpg", width=200)

Containers

with st.container(border=True):
    st.write("This is inside the container")
    st.text_input("Name")

container = st.container(border=True)
container.write("This is inside the container")

st.write("This is outside the container")

Columns

col1, col2, col3 = st.columns(3)

with col1:
    st.header("A cat")
    st.image("https://static.streamlit.io/examples/cat.jpg")

with col2:
    st.header("A dog")
    st.image("https://static.streamlit.io/examples/dog.jpg")

with col3:
    st.header("An owl")
    st.image("https://static.streamlit.io/examples/owl.jpg")

for columns with specific width

col1, col2, col3 = st.columns([1, 2, 2])

Expander

st.bar_chart({"data": [1, 5, 2, 6, 2, 1]})

with st.expander("See explanation"):
    st.write('''
        The chart above shows some numbers I picked for you.
        I rolled actual dice for these, so they're *guaranteed* to
        be random.
    ''')
    st.image("https://static.streamlit.io/examples/dice.jpg")