Update app.py

app.py

@@ -1206,6 +1206,8 @@ js_code = """
 with gr.Blocks(
     title="Agent Feynman",
     css="""
+    h1 {text-align: center}
+    h2 {text-align: center}
     #lecture-container {font-family: 'Times New Roman', Times, serif;}
     #slide-content {font-size: 48px; line-height: 1.2;}
     #form-group {box-shadow: 0 0 2rem rgba(0, 0, 0, .14) !important; border-radius: 30px; font-weight: 900; color: #000; background-color: white;}
@@ -1246,7 +1248,7 @@ with gr.Blocks(
             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>
-                <p style="margin-top: 10px; font-size: 16px;">Please Generate lecture content via the form on the left first before lecture begins</p>
+                <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>
             """
             slide_display = gr.HTML(label="Lecture Slides", value=default_slide_html, elem_id="slide-display")