Adjusting Streamlit page container style

style.py

import streamlit as st

# --------------------------------------------------------------------------------

def v_space(n, level=None):
    for _ in range(n):
        header_marks = ''
        if level:
            header_marks = '#' * int(level)
        st.write(f'{header_marks}  '.strip())

# --------------------------------------------------------------------------------
# Page style usage example:
#
#   from style import set_page_container_style
#   set_page_container_style(
#       max_width=1200, max_width_100_percent=False,
#       padding_top=2, padding_right=5, padding_left=5, padding_bottom=5,
#       color='black', background_color='#B7D6D5',
#       sidebar_color='white', sidebar_background_color='#74A9BE'
#   )
# 
# -----------------------------------------------------------------------------

# choose colours here: https://colorpalettes.net/
BACKGROUND_COLOR = 'white'
COLOR = 'black'
SIDEBAR_BACKGROUND_COLOR = 'white'
SIDEBAR_COLOR = 'black'

def set_page_container_style(
    max_width: int = 1100, max_width_100_percent: bool = False,
    padding_top: int = 5, padding_right: int = 5, padding_left: int = 5, padding_bottom: int = 5,
    color: str = COLOR, background_color: str = BACKGROUND_COLOR,
    sidebar_color: str = SIDEBAR_COLOR, sidebar_background_color: str = SIDEBAR_BACKGROUND_COLOR
):
    if max_width_100_percent:
        max_width_str = f'max-width: 100%;'
    else:
        max_width_str = f'max-width: {max_width}px;'
    st.markdown(
        f'''
        <style>
            header[data-testid="stHeader"] {{
                background-color: {background_color} !important;
                // visibility: hidden;
                // height: 0%;
            }}
            section[data-testid="stSidebar"] > div:first-child > div:nth-child(2) {{
                padding-top: {padding_top}rem;
                color_HIDDEN: {sidebar_color};
            }}
            section[data-testid="stSidebar"] {{
                background-color: {sidebar_background_color};
            }}
            div[data-testid="stAppViewContainer"] > .main > .block-container {{
                {max_width_str}
                padding-top: {padding_top}rem;
                padding-right: {padding_right}rem;
                padding-left: {padding_left}rem;
                padding-bottom: {padding_bottom}rem;
            }}
            div[data-testid="stAppViewContainer"] {{
                color: {color};
                background-color: {background_color};
            }}
        </style>
        ''',
        unsafe_allow_html=True,
    )