fix css

index.html

@@ -335,8 +335,8 @@
         justify-content: center;
         align-items: center;
         padding: 0;
-        width: 70%;
-        height: 70%;
+        min-width: 70%;
+        min-height: 70%;
         background-color: white;
       }
 
@@ -363,6 +363,10 @@
         text-align: center;
       }
 
+      .help_dialog form {
+        margin-bottom: 1em;
+      }
+
     </style>
 
     <script type='module'>