lib/bootstrap-email/converters/base.rb in bootstrap-email-1.0.0.alpha3 vs lib/bootstrap-email/converters/base.rb in bootstrap-email-1.0.0.alpha3.1

@@ -12,11 +12,12 @@
       end
 
       private
 
       def template(file, locals_hash = {})
-        locals_hash[:classes] = locals_hash[:classes].split.join(' ') if locals_hash[:classes]
+        locals_hash[:classes] = locals_hash[:classes].to_s.split.join(' ')
+        locals_hash[:content] ||= nil
         if @cached_templates[file]
           string = @cached_templates[file]
         else
           path = File.expand_path("../../../core/templates/#{file}.html", __dir__)
           string = File.read(path).chop # read and remove trailing newline
@@ -33,10 +34,10 @@
         doc.css(css_lookup).sort_by { |n| n.ancestors.size }.reverse!.each(&blk)
       end
 
       def add_class(node, class_name)
         node['class'] ||= ''
-        node['class'] += class_name
+        node['class'] += node['class'].length.zero? ? class_name : " #{class_name}"
       end
 
       def margin?(node)
         margin_top?(node) || margin_bottom?(node)
       end