diff --git a/djangoapps/simplewiki/mdx_circuit.py b/djangoapps/simplewiki/mdx_circuit.py
index b598e184c6..ed1298e118 100755
--- a/djangoapps/simplewiki/mdx_circuit.py
+++ b/djangoapps/simplewiki/mdx_circuit.py
@@ -59,7 +59,7 @@ class CircuitLink(markdown.inlinepatterns.Pattern):
         data = m.group('data')
         data = escape(data)
         ##TODO: We need to html escape the data
-        return etree.fromstring("<div align='center'><input type='hidden' parts='' value='" + data + "' analyses='' class='schematic ctrls' width='150' height='150'/></div>")
+        return etree.fromstring("<div align='center'><input type='hidden' parts='' value='" + data + "' analyses='' class='schematic ctrls' width='500' height='300'/></div>")
         
     
 def makeExtension(configs=None) :
diff --git a/static/js/CodeMirror/mitx_markdown.js b/static/js/CodeMirror/mitx_markdown.js
index 6c0cb9dc26..a6f5ed14c6 100644
--- a/static/js/CodeMirror/mitx_markdown.js
+++ b/static/js/CodeMirror/mitx_markdown.js
@@ -1,5 +1,5 @@
-var schematic_height = 153;
-var schematic_width = 400;
+var schematic_height = 300;
+var schematic_width = 500;
 
 $(function(){
   $(document).ready(function() {
diff --git a/templates/simplewiki_edit.html b/templates/simplewiki_edit.html
index 85059a1766..87e53869fa 100644
--- a/templates/simplewiki_edit.html
+++ b/templates/simplewiki_edit.html
@@ -19,14 +19,13 @@
 
 
 <style type="text/css">
-.CodeMirror-scroll {
-  height: 800px;
-  width: 680px;
-}
+  .CodeMirror-scroll {
+    min-height: 550px;
+    width: 100%;
+  }
   .CodeMirror {
     border: 1px solid black;
     text-align: left;
-
   }
 </style>