diff --git a/node_modules/mdl-ext/src/dialog/dialog.scss b/node_modules/mdl-ext/src/dialog/dialog.scss
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+/**
+ * Copyright 2015 Google Inc. All Rights Reserved.
+ * Copyright 2016 Leif Olsen. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SASS based on css from Google Chrome Dialog polyfill, https://github.com/GoogleChrome/dialog-polyfill
+ * @include 'node_modules/dialog-polyfill/dialog-polyfill.css' before using this
+ */
+
+@import "../variables";
+
+dialog.mdlext-dialog {
+  position: absolute;
+  border: 0;
+  opacity: 0;
+  padding: $mdlext-dialog-padding;
+  background-color: $mdlext-dialog-background-color;
+
+  &[open] {
+    animation: mdlext-open-dialog $mdlext-dialog-open-animation;
+  }
+  &[open]::backdrop {
+    animation: mdlext-darken-backdrop $mdlext-dialog-backdrop-animation;
+  }
+  &[open] + .backdrop {
+    animation: mdlext-darken-backdrop $mdlext-dialog-backdrop-animation;
+  }
+}
+
+@keyframes mdlext-darken-backdrop {
+  to { background: $mdlext-dialog-backdrop-color; }
+}
+@keyframes mdlext-open-dialog {
+  to { opacity: 1; }
+}