Update app.py

app.py

@@ -302,11 +302,11 @@ def generate(input_image, prompt, length, steps, shift, seed, guidance, do_rewri
     return output_path, actual_prompt
 
 # --- Part 6: UI ---
-css = '''#col-container { max-width: 900px; margin: 0 auto; }
+css = '''.gradio-container .app { max-width: 900px !important; margin: 0 auto; }
 .dark .progress-text{color: white !important}'''
 def create_ui():
     with gr.Blocks(title="HunyuanVideo 1.5 I2V", css=css) as demo:
-        gr.Markdown(f"#🎬 HunyuanVideo 1.5 I2V 480p distilled demo")
+        gr.Markdown(f"# 🎬 HunyuanVideo 1.5 I2V 480p distilled demo")
         gr.Markdown(f"This is a demo for HunyuanVideo 1.5 I2v {TRANSFORMER_VERSION}, released together with a collection of 10 other checkpoints (text-to-video, 720p, upscalers). Check out the [HunyuanVideo-1.5 model page](https://huggingface.co/tencent/HunyuanVideo-1.5) for more")
         
         with gr.Row():