import streamlit as st

html_code = """
<div style="
    border: 2px solid black; 
    padding: 20px; 
    margin: 20px; 
    border-radius: 10px; 
    background-color: #f0f0f0;
    width: 300px;
    height: 150px;
    text-align: center;
    box-shadow: 2px 4px 6px rgba(0, 0, 0, 0.1);
">
    <h3 style="color: #333;">This is a Box</h3>
    <p style="color: #555;">You can customize the size, color, and content of this box.</p>
</div>
"""

st.markdown(html_code, unsafe_allow_html=True)