app.py

import gradio as gr

with gr.Blocks() as demo:
    gr.Markdown("### Open Google Colab from Hugging Face Space")
    gr.HTML(
        '''
        <iframe 
            src="https://www.google.com/" 
            width="100%" 
            height="800px" 
            style="border:none;"
        ></iframe>
        '''
    )
    gr.Markdown(
        "If the Colab interface does not load, click the button below to open Colab in a new tab."
    )
    gr.HTML('<a href="https://colab.research.google.com/" target="_blank">Open Colab</a>')

demo.launch()