Changes for CSS

app.py

@@ -144,7 +144,7 @@ body {
     background-color: #1a1a1a !important;
     color: #FFFFFF !important;
 }
-textarea, input, select, button {
+textarea, input, select {
     background-color: #333333 !important;
     color: #f5f5f5 !important;
     border-color: #555555 !important;