docs(card): fix card overflowing on smaller screens (#9593)

CDDelta · jelbourn · commit dbc34beafe96 · 2018-01-25T10:41:14.000-08:00
diff --git a/src/material-examples/card-fancy/card-fancy-example.css b/src/material-examples/card-fancy/card-fancy-example.css
@@ -1,5 +1,5 @@
 .example-card {
-  width: 400px;
+  max-width: 400px;
 }
 
 .example-header-image {
