--- a/web/data/cubicweb.facets.css	Tue Nov 29 12:06:35 2011 +0100
+++ b/web/data/cubicweb.facets.css	Thu Dec 01 12:48:46 2011 +0100
@@ -13,7 +13,6 @@
 .facetGroup {
   margin: .3em;
   float: left;
-  max-height: %(facet_Height)s;
 }
 
 div.facetTitle, div.bkSearch  {

--- a/web/data/uiprops.py	Tue Nov 29 12:06:35 2011 +0100
+++ b/web/data/uiprops.py	Thu Dec 01 12:48:46 2011 +0100
@@ -168,7 +168,6 @@
 
 # facets
 facet_titleFont = 'bold SansSerif'
-facet_Height = '15em'
 facet_Padding = '.4em'
 facet_MarginBottom = '.4em'
-facet_vocabMaxHeight = '12em' # ensure << facet_Height
+facet_vocabMaxHeight = '12em' # ensure < FACET_GROUP_HEIGHT by some const. factor (e.g 3em)

--- a/web/facet.py	Tue Nov 29 12:06:35 2011 +0100
+++ b/web/facet.py	Thu Dec 01 12:48:46 2011 +0100
@@ -1407,7 +1407,8 @@
 
 
 ## html widets ################################################################
-_DEFAULT_CONSTANT_VOCAB_WIDGET_HEIGHT = 14
+_DEFAULT_VOCAB_WIDGET_HEIGHT = 12
+_DEFAULT_FACET_GROUP_HEIGHT = 15
 
 class FacetVocabularyWidget(htmlwidgets.HTMLWidget):
 
@@ -1422,7 +1423,7 @@
         hence, it is strongly advised not to specify but ems for this css prop
         """
         return css_em_num_value(self.facet._cw.vreg, 'facet_vocabMaxHeight',
-                                _DEFAULT_CONSTANT_VOCAB_WIDGET_HEIGHT)
+                                _DEFAULT_VOCAB_WIDGET_HEIGHT)
 
     @cachedproperty
     def height(self):

--- a/web/views/facets.py	Tue Nov 29 12:06:35 2011 +0100
+++ b/web/views/facets.py	Thu Dec 01 12:48:46 2011 +0100
@@ -293,8 +293,7 @@
         w(u'<div class="filter">\n')
         widget_queue = []
         queue_height = 0
-        wdg_stack_size = css_em_num_value(self._cw.vreg, 'facet_Height',
-                                          facetbase._DEFAULT_CONSTANT_VOCAB_WIDGET_HEIGHT)
+        wdg_stack_size = facetbase._DEFAULT_FACET_GROUP_HEIGHT
         for wdg in wdgs:
             height = wdg.height + self.per_facet_height_overhead
             if queue_height + height <= wdg_stack_size: