app2.py

# app.py
import gradio as gr

with gr.Blocks(theme=gr.themes.Base(), css="body { background-color: #0f0f0f; }") as app:
    with gr.Column(elem_id="centered-content"):
        gr.Markdown("""
        ## OptionStrat Flow
        <a href="https://optionstrat.com/flow" target="_blank" style="
            display: inline-block;
            background-color: #007bff;
            color: white;
            padding: 12px 24px;
            text-decoration: none;
            border-radius: 6px;
            font-size: 16px;
        ">Truy cập Option Flow</a>
        """)
app.launch()