diff --git a/node_modules/material-design-lite/src/shadow/demo.html b/node_modules/material-design-lite/src/shadow/demo.html
new file mode 100644
index 0000000..2b09571
--- /dev/null
+++ b/node_modules/material-design-lite/src/shadow/demo.html
@@ -0,0 +1,8 @@
+  <div class="demo-preview-block demo-page--shadow">
+    <div class="demo-shadow-card mdl-shadow--2dp">2dp</div>
+    <div class="demo-shadow-card mdl-shadow--3dp">3dp</div>
+    <div class="demo-shadow-card mdl-shadow--4dp">4dp</div>
+    <div class="demo-shadow-card mdl-shadow--6dp">6dp</div>
+    <div class="demo-shadow-card mdl-shadow--8dp">8dp</div>
+    <div class="demo-shadow-card mdl-shadow--16dp">16dp</div>
+  </div>