02-06-22-stmultipage-continents.py

    # Continents
    contlist = df['continent'].unique()
    continent = st.selectbox("Select a continent:", contlist)

    col1, col2 = st.columns(2)

    fig = px.line(df[df['continent'] == continent], 
		x = "year", y = "gdpPercap",
		title = "GDP per Capita",color = 'country')
    col1.plotly_chart(fig)

    fig = px.line(df[df['continent'] == continent], 
		x = "year", y = "pop",
		title = "Population",color = 'country')
    col2.plotly_chart(fig)