Handle the case when :

* Lightbox is disabled
 * A cover is present
 * Only the author is know (no series or tags)

Then in the bookdetail the footer is doubled in size.

styles/style-base.css

@@ -269,6 +269,7 @@ max-width:800px;
 
 section .bookpopup{
     padding: 8px 8px;
+    min-height: 175px;
 }
 
 /* =============================================================================