Update app.py

app.py

@@ -10,8 +10,10 @@ secreturl = os.environ.get('secret_url')
 custom_css = """
 #md {
     height: 350px;  
-    font-size:28px;
+    font-size:20px;
     background:grey;
+    padding: 20px;
+    color:black:
 }
 #senden {
     width: 200px; float:right;