Add visual test for thumbnail

diff --git a/test/visual/pages/thumbnail.html b/test/visual/pages/thumbnail.html
new file mode 100644 (file)
index 0000000..760ecb3
--- /dev/null
+++ b/test/visual/pages/thumbnail.html
@@ -0,0 +1,9 @@
+<container>
+  <row>
+    <columns>
+      <center>
+        <img src="//placehold.it/300x300" width="300" alt="" class="thumbnail">
+      </center>
+    </columns>
+  </row>
+</container>