browser icon change back

cps/templates/detail.html

@@ -108,7 +108,7 @@
               {%if format.format|lower == 'epub' or format.format|lower == 'txt' or format.format|lower == 'pdf' %}
               <div class="btn-group" role="group">
                 <button id="btnGroupDrop2" type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
-                  <span class="glyphicon glyphicon-download"></span>Read in browser
+                  <span class="glyphicon glyphicon-eye-open"></span>Read in browser
                   <span class="caret"></span>
                 </button>
                 <ul class="dropdown-menu" aria-labelledby="btnGroupDrop2">