add support for skfiddle width/height options

experimental/webtry/templates/sidebar.html

Index: experimental/webtry/templates/sidebar.html
diff --git a/experimental/webtry/templates/sidebar.html b/experimental/webtry/templates/sidebar.html
new file mode 100644
index 0000000000000000000000000000000000000000..c2f33fec482a92612a0871ae6972f79a346153e8
--- /dev/null
+++ b/experimental/webtry/templates/sidebar.html
@@ -0,0 +1,25 @@
+<section id="sidebar">
+  <div class="panel panel-primary">
+    <div class="panel-heading">
+      <h3 class="panel-title">
+        Options
+      </h3>
+    </div>
+    <div class="panel-body">
+      <form class="form-horizontal" role="form">
+        <div class="form-group">
+          <label for="image-width" class="col-sm-4 control-label">Width</label>
+          <div class="col-sm-8">
+            <input type="number" class="form-control" id="image-width" value="{{.Width}}">
+          </div>
+        </div>
+        <div class="form-group">
+          <label for="image-height" class="col-sm-4 control-label">Height</label>
+          <div class="col-sm-8">
+            <input type="number" class="form-control" id="image-height" value="{{.Height}}">
+          </div>
+        </div>
+      </form>
+    </div>
+  </div>
+</section>