Update app.py

app.py

@@ -1287,7 +1287,7 @@ with gr.Blocks(
         with gr.Column(scale=2):
             default_slide_html = """
             <div style="display: flex; flex-direction: column; justify-content: center; align-items: center; height: 100%; min-height: 700px; padding: 20px; text-align: center; border: 1px solid #ddd; border-radius: 30px; box-shadow: 0 0 2rem rgba(0, 0, 0, .14) !important;">
-                <h2 style="font-style: italic; color: #000;">Waiting for lecture content...</h2>
+                <h2 style="font-style: italic; color: #000 !important;">Waiting for lecture content...</h2>
                 <p style="margin-top: 10px; font-size: 16px;color: #000">Please Generate lecture content via the form on the left first before lecture begins</p>
             </div>
             """