Fix bar label display

pygal/bar.py

@@ -16,9 +16,8 @@ class Bar(BaseGraph):
         x_ranges = zip(x_pos, x_pos[1:])
 
         x_labels = self.x_labels and zip(self.x_labels, [
-            sum(x_range) / 2 for x_range in x_ranges])
+            sum(x_range) / 2. for x_range in x_ranges])
         y_labels = zip(map(str, y_pos), y_pos)
-
         self._compute_margin(x_labels, y_labels)
         self.svg.set_view(ymin, ymax)
         self.svg.make_graph()

pygal/style.py

@@ -29,7 +29,7 @@ class Style(object):
 
 DefaultStyle = Style()
 LightStyle = Style(
-    background='transparent',
+    background='white',
     plot_background='rgba(0, 0, 255, 0.1)',
     foreground='rgba(0, 0, 0, 0.7)',
     foreground_light='rgba(0, 0, 0, 0.9)',