diff --git a/css/components/islandora_mods.css b/css/components/islandora_mods.css
index c8bb3f6..03c2d83 100644
--- a/css/components/islandora_mods.css
+++ b/css/components/islandora_mods.css
@@ -90,3 +90,6 @@ input#edit-submit-solr-search-content--3 {
 nav#block-oliveskln-dummymenu {
   display: none;
 }
+iframe.pdf {
+  border: 1px solid #ccc;
+}