import streamlit as st
st.markdown(
    """
    <h1 style="border-bottom: 2px solid black; text-align: center;"> About Data Science</h1>:""",unsafe_allow_html = True)
st.markdown("""<h2 style="border-bottom:2px solid black; text-align:left;"> INTRODUCTION </h2>:""",unsafe_allow_html=True)