Factor out common template code. Send stdout back to web page.

experimental/webtry/css/webtry.css

 body {
   font-family: helvetica arial sans-serif;
   margin: 0;
   padding: 0;
 }
 
 img {
   box-shadow: 2px 2px 5px gray;
 }
 
@@ skipping 17 matching lines @@
 }
 
 .iframe textarea {
   resize: none;
 }
 
 template {
   display: none;
 }
 
+code {
+    color: green;
+}
+
 pre, code {
     padding: 0;
-    color: green;
-}
-
-#output {
-    color: #333;
 }
 
 .tries {
   margin: 1em;
   float: left;
 }
 
 #title {
   color: #ddd;
   background: #444;
@@ skipping 16 matching lines @@
 #tryHistory {
     position: absolute;
     top: 3em;
     right: 10px;
     width: 75px;
 }
 
 #tryHistory .tries {
     float: none;
 }