Fix the bug in the problem example display

app.py

@@ -767,7 +767,7 @@ with gr.Blocks(css=css, title="Math Olympiad Solver") as demo:
         with gr.Column(scale=1, elem_classes="left"):
             with gr.Row(elem_classes="probelm-example-container"):
                 with gr.Blocks(elem_classes="probelm-example-title"):
-                    gr.HTML("Problem example")
+                    gr.HTML("Problem example", elem_classes="probelm-example-title-content")
 
                 with gr.Blocks(elem_classes="action-container"):
                     gr.Button("", elem_classes="probelm-example-another", icon=reset_svg)