staging thumbnails

web/static/index.css

@@ -65,6 +65,7 @@ body {
     border: 2px solid rgba(111, 111, 111, 0.34);
     width: 200px;
     max-height: 192px;
+    overflow: scroll;
 }
 
 .catalog-preview h1 {
@@ -87,6 +88,8 @@ body {
     max-height: 70%;
     max-width: 80%;
     margin-bottom: 10px;
+    border: 1px solid #B7C5D9;
+    box-shadow: 0 0 3px rgba(0, 0, 0, 0.25);
 }
 
 /* NEW THREAD BUTTON/FORM */