Update app.py

app.py

@@ -428,7 +428,7 @@ with gr.Blocks(title="PDF to Audio", css="""
         align-items: center;
         justify-content: space-between;
         padding: 20px;
-        background-color: #f0f0f0;
+        background-color: transparent;
         border-bottom: 1px solid #ddd;
     }
     #title {
@@ -436,8 +436,8 @@ with gr.Blocks(title="PDF to Audio", css="""
         margin: 0;
     }
     #logo_container {
-        width: 150px;
-        height: 150px;
+        width: 200px;
+        height: 200px;
         display: flex;
         justify-content: center;
         align-items: center;