Update app.py

app.py

@@ -25,9 +25,9 @@ css = """
             font-family: 'IBM Plex Sans', sans-serif;
         }
         .gr-button {
-            color: white;
-            border-color: black;
-            background: black;
+            color: black;
+            border-color: grey;
+            background: grey;
         }
         input[type='range'] {
             accent-color: black;
@@ -115,7 +115,7 @@ with block:
                 </h1>
               </div>
               <p style="margin-bottom: 10px; font-size: 94%">
-                This is a demo for fairseq speech-to-speech translation models. We have S2UT and UnitY models for bidirectional Hokkien and English translation. Please select the model and record your input to try it.
+                A demo for fairseq speech-to-speech translation models. It supports S2UT and UnitY models for bidirectional Hokkien and English translation. Please select the model and record the input to submit.
               </p>
             </div>
         """