diff -r bd7bcfc86232 -r 8eb98cd4c29d client/app/books/book.html
--- a/client/app/books/book.html	Fri Apr 03 15:03:04 2015 +0200
+++ b/client/app/books/book.html	Fri Apr 03 15:04:57 2015 +0200
@@ -1,6 +1,6 @@
 <p>Books {{idBook}}&nbsp;:</p>
 
-<ul ui-sortable="sortableOptions" ng:model="slides" class="list-unstyled list-inline gallery">
+<ul ui-sortable="sortableOptions" ng:model="slides" class="list-unstyled list-inline gallery container">
   <li class="col-md-3 item" ng-repeat="i in slides">
     <div class="img-ctn">
         <img class="img img-responsive image" ng-src="{{ i.details.images }}" />