Fixed wiki circuit editor modal to be a little better styled.

lms/static/sass/course/wiki/_wiki.scss

@@ -790,4 +790,58 @@ section.wiki {
 .modal-preview .main-article {
   width: 100% !important;
   margin-left: 0;
-}
+}
+
+
+#circuit_editor_modal.modal {
+  width: 648px;
+  z-index: 9999;
+  margin-left: -325px;
+  top: 150px;
+
+  .modal-header {
+    h1, p {
+      color: #fff;  
+    }
+
+    h1 {
+      margin: 3px 12px 8px;
+      font-size: 1.1em;
+    }      
+
+    p {
+      font-size: 0.9em;
+      margin: 5px 12px 20px;
+      line-height: 1em;
+    }
+  }
+
+  .modal-body {
+    padding-bottom: 8px;
+  }
+
+  .modal-footer {
+    margin: 12px;
+  }
+
+  .modal-footer .btn {
+    @include button(simple, #eee);
+    font-size: 0.8em;
+    margin-right: 5px;
+    line-height: 1.2em;
+    text-transform: none !important;
+    letter-spacing: 0 !important;
+
+    &:hover {
+      color: $base-font-color;
+      text-decoration: none;
+    }
+
+    &.btn-primary {
+      @include button;
+      font-size: 0.8em;
+    }
+    
+    margin-right: 10px;
+  }
+}