diff --git a/display.py b/display.py
index 69473a5..c119712 100644
--- a/display.py
+++ b/display.py
@@ -60,45 +60,78 @@ class DisplayHTMLBlockTable(DisplayHTMLBlock):
         self.rows.append(listToStr(row))
         self.rows_cssclasses.append(['' for e in row])
 
-    def getCellValue(row, col):
+    def getCellValue(self, row, col):
         if row < 0 or col < 0 or\
            row >= len(self.rows) or col >= len(self.cols):
-            raise ValueError('Invalid indices')
+            raise ValueError('Invalid indices %d,%d' % (row, col))
 
         return self.rows[row][col]
 
-    def setCellValue(row, col, value):
+    def setCellValue(self, row, col, value):
         if row < 0 or col < 0 or\
            row >= len(self.rows) or col >= len(self.cols):
-            raise ValueError('Invalid indices')
+            raise ValueError('Invalid indices %d,%d' % (row, col))
 
         return self.rows[row][col]
 
-    def setCellCSSClass(row, col, value):
+    def setCellCSSClass(self, row, col, value):
         if row < 0 or col < 0 or\
            row >= len(self.rows) or col >= len(self.cols):
-            raise ValueError('Invalid indices')
+            raise ValueError('Invalid indices %d,%d' % (row, col))
 
         self.rows_cssclasses[row][col] = value
 
-    def setRowCSSClass(row, value):
+    def getCellCSSClass(self, row, col):
+        if row < 0 or col < 0 or\
+           row >= len(self.rows) or col >= len(self.cols):
+            raise ValueError('Invalid indices %d,%d' % (row, col))
+
+        return self.rows_cssclasses[row][col]
+
+    def getColCSSClass(self, col):
+        if col < 0 or col >= len(self.cols):
+            raise ValueError('Invalid indice %d' % (col))
+
+        return self.cols_cssclasses[col]
+
+    def setRowCSSClass(self, row, value):
         if row < 0 or row >= len(self.rows):
-            raise ValueError('Invalid indice')
+            raise ValueError('Invalid indice %d' % (row))
 
         for i in range(0, self.rows_cssclasses[row]):
             self.rows_cssclasses[row][i] = value
-                        
+
+    def setColCSSClass(self, col, value):
+        if col < 0 or col >= len(self.cols):
+            raise ValueError('Invalid indice %d' % (col))
+
+        self.cols_cssclasses[col] = value
+
+    def setColsCSSClass(self, values):
+        if len(values) != len(self.cols):
+            raise ValueError('Invalid values size')
+
+        self.cols_cssclasses = values
+
     def build(self, f):
         if not self.html:
             html = '<table>'
-            html += '<tr>'
-            for title in self.cols:
-                html += '<th>%s</th>' % (title)
-            html += '</tr>'
-            for row in self.rows:
+            if self.cols:
                 html += '<tr>'
-                for v in row:
-                    html += '<td>%s</td>' % (v)
+                for i in range (0, len(self.cols)):
+                    title = self.cols[i]
+                    style = self.getColCSSClass(i)
+                    if style: style = ' class="%s"' % (style)
+                    html += '<th%s>%s</th>' % (style, title)
+                html += '</tr>'
+            for i in range(0, len(self.rows)):
+                row = self.rows[i]
+                html += '<tr>'
+                for j in range(0, len(row)):
+                    v = row[j]
+                    style = self.getCellCSSClass(i, j)
+                    if style: style = ' class="%s"' % (style)
+                    html += '<td%s>%s</td>' % (style, v)
                 html += '</tr>'
             html += '</table>'
             self.html = html
diff --git a/iwla.py b/iwla.py
index 2f01132..f9e9d62 100755
--- a/iwla.py
+++ b/iwla.py
@@ -232,7 +232,7 @@ class IWLA(object):
         page = DisplayHTMLPage(title, filename)
 
         days = DisplayHTMLBlockTable('By day', ['Day', 'Visits', 'Pages', 'Hits', 'Bandwidth', 'Not viewed Bandwidth'])
-
+        days.setColsCSSClass(['', 'iwla_visit', 'iwla_page', 'iwla_hit', 'iwla_bandwith', 'iwla_bandwith'])
         keys = self.current_analysis['days_stats'].keys()
         keys.sort()
         nb_visits = 0
diff --git a/plugins/display/all_visits.py b/plugins/display/all_visits.py
index ea79b0f..2e643f5 100644
--- a/plugins/display/all_visits.py
+++ b/plugins/display/all_visits.py
@@ -22,6 +22,8 @@ class IWLADisplayAllVisits(IPlugin):
 
         page = DisplayHTMLPage(title, path)
         table = DisplayHTMLBlockTable('Last seen', ['Host', 'Pages', 'Hits', 'Bandwidth', 'Last seen'])
+        table.setColsCSSClass(['', 'iwla_page', 'iwla_hit', 'iwla_bandwith', ''])
+        
         for super_hit in last_access:
             address = super_hit['remote_addr']
             if display_visitor_ip and\
diff --git a/plugins/display/referers.py b/plugins/display/referers.py
index 128026c..60bc154 100644
--- a/plugins/display/referers.py
+++ b/plugins/display/referers.py
@@ -40,7 +40,8 @@ class IWLADisplayReferers(IPlugin):
 
         page = DisplayHTMLPage(title, path)
         table = DisplayHTMLBlockTable('Connexion from', ['Origin', 'Pages', 'Hits'])
-                        
+        table.setColsCSSClass(['', 'iwla_page', 'iwla_hit'])
+
         table.appendRow(['<b>Search Engine</b>', '', ''])
         for r,_ in top_search_engine_referers:
             row = [r, search_engine_referers[r]['pages'], search_engine_referers[r]['hits']]
@@ -67,6 +68,8 @@ class IWLADisplayReferers(IPlugin):
         title = '%s - %s' % ('Connexion from', link)
 
         table = DisplayHTMLBlockTable(title, ['Origin', 'Pages', 'Hits'])
+        table.setColsCSSClass(['', 'iwla_page', 'iwla_hit'])
+
         table.appendRow(['<b>Search Engine</b>', '', ''])
         for r,_ in top_search_engine_referers[:10]:
             row = [r, search_engine_referers[r]['pages'], search_engine_referers[r]['hits']]
@@ -92,6 +95,7 @@ class IWLADisplayReferers(IPlugin):
 
         page = DisplayHTMLPage(title, path)
         table = DisplayHTMLBlockTable('Top key phrases', ['Key phrase', 'Search'])
+        table.setColsCSSClass(['', 'iwla_search'])
         for phrase in top_key_phrases:
             table.appendRow([phrase[0], phrase[1]])
         page.appendBlock(table)
@@ -103,6 +107,7 @@ class IWLADisplayReferers(IPlugin):
         # Top key phrases in index
         title = '%s - %s' % ('Top key phrases', link)
         table = DisplayHTMLBlockTable(title, ['Key phrase', 'Search'])
+        table.setColsCSSClass(['', 'iwla_search'])
         for phrase in top_key_phrases[:10]:
             table.appendRow([phrase[0], phrase[1]])
         index.appendBlock(table)
diff --git a/plugins/display/top_downloads.py b/plugins/display/top_downloads.py
index 5ca8e9e..727c138 100644
--- a/plugins/display/top_downloads.py
+++ b/plugins/display/top_downloads.py
@@ -20,7 +20,8 @@ class IWLADisplayTopDownloads(IPlugin):
         title = time.strftime('All Downloads - %B %Y', self.iwla.getCurTime())
 
         page = DisplayHTMLPage(title, path)
-        table = DisplayHTMLBlockTable('All Downloads', ['URI', 'Hit'])        
+        table = DisplayHTMLBlockTable('All Downloads', ['URI', 'Hit'])
+        table.setColsCSSClass(['', 'iwla_hit'])
         for (uri, entrance) in top_downloads:
             table.appendRow([uri, entrance])
         page.appendBlock(table)
@@ -33,7 +34,8 @@ class IWLADisplayTopDownloads(IPlugin):
         # Top in index
         index = self.iwla.getDisplayIndex()
         
-        table = DisplayHTMLBlockTable(title, ['URI', 'Hits'])        
+        table = DisplayHTMLBlockTable(title, ['URI', 'Hits'])
+        table.setColsCSSClass(['', 'iwla_hit'])
         for (uri, entrance) in top_downloads[:10]:
             table.appendRow([uri, entrance])
         index.appendBlock(table)
diff --git a/plugins/display/top_hits.py b/plugins/display/top_hits.py
index 1e44259..9beecd1 100644
--- a/plugins/display/top_hits.py
+++ b/plugins/display/top_hits.py
@@ -21,6 +21,7 @@ class IWLADisplayTopHits(IPlugin):
 
         page = DisplayHTMLPage(title, path)
         table = DisplayHTMLBlockTable('All Hits', ['URI', 'Entrance'])        
+        table.setColsCSSClass(['', 'iwla_hit'])
         for (uri, entrance) in top_hits:
             table.appendRow([uri, entrance])
         page.appendBlock(table)
@@ -34,6 +35,7 @@ class IWLADisplayTopHits(IPlugin):
         index = self.iwla.getDisplayIndex()
         
         table = DisplayHTMLBlockTable(title, ['URI', 'Entrance'])        
+        table.setColsCSSClass(['', 'iwla_hit'])
         for (uri, entrance) in top_hits[:10]:
             table.appendRow([uri, entrance])
         index.appendBlock(table)
diff --git a/plugins/display/top_pages.py b/plugins/display/top_pages.py
index 3c3cfee..bf7c907 100644
--- a/plugins/display/top_pages.py
+++ b/plugins/display/top_pages.py
@@ -20,7 +20,8 @@ class IWLADisplayTopPages(IPlugin):
         path = self.iwla.getCurDisplayPath(filename)
 
         page = DisplayHTMLPage(title, path)
-        table = DisplayHTMLBlockTable('All Pages', ['URI', 'Entrance'])        
+        table = DisplayHTMLBlockTable('All Pages', ['URI', 'Entrance'])
+        table.setColsCSSClass(['', 'iwla_hit'])
         for (uri, entrance) in top_pages:
             table.appendRow([uri, entrance])
         page.appendBlock(table)
@@ -33,7 +34,8 @@ class IWLADisplayTopPages(IPlugin):
         # Top in index
         index = self.iwla.getDisplayIndex()
         
-        table = DisplayHTMLBlockTable(title, ['URI', 'Entrance'])        
+        table = DisplayHTMLBlockTable(title, ['URI', 'Entrance'])
+        table.setColsCSSClass(['', 'iwla_hit'])
         for (uri, entrance) in top_pages[:10]:
             table.appendRow([uri, entrance])
         index.appendBlock(table)
diff --git a/plugins/display/top_visitors.py b/plugins/display/top_visitors.py
index e806209..8748f27 100644
--- a/plugins/display/top_visitors.py
+++ b/plugins/display/top_visitors.py
@@ -21,6 +21,7 @@ class IWLADisplayTopVisitors(IPlugin):
 
         index = self.iwla.getDisplayIndex()
         table = DisplayHTMLBlockTable('Top visitors', ['Host', 'Pages', 'Hits', 'Bandwidth', 'Last seen'])
+        table.setColsCSSClass(['', 'iwla_page', 'iwla_hit', 'iwla_bandwith', ''])
         for super_hit in top_visitors:
             address = super_hit['remote_addr']
             if display_visitor_ip and\