diff --git a/app/assets/stylesheets/components/letter.scss b/app/assets/stylesheets/components/letter.scss
index 979831cf8..62882c912 100644
--- a/app/assets/stylesheets/components/letter.scss
+++ b/app/assets/stylesheets/components/letter.scss
@@ -1,6 +1,11 @@
-
 $iso-paper-ratio: 141.42135624%;
 
+@keyframes ellipsis {
+  to {
+    width: 1.25em;
+  }
+}
+
 .letter {
 
   padding: 0;
@@ -8,6 +13,21 @@ $iso-paper-ratio: 141.42135624%;
   position: relative;
   background: $panel-colour;
 
+  &:before {
+    position: absolute;
+    top: 10%;
+    left: 50%;
+    margin-left: -0.5em;
+    font-size: 96px;
+    color: $white;
+    overflow: hidden;
+    display: block;
+    vertical-align: bottom;
+    animation: ellipsis steps(4,end) 1.3s infinite;
+    content: "\2026"; // ellipsis
+    width: 0px;
+  }
+
   a {
     display: block;
     overflow: hidden;