diff --git a/README b/README
index 5b1d3e5..5c09753 100644
--- a/README
+++ b/README
@@ -38,6 +38,13 @@ Or, if you prefer, add something like the following to environment.rb:
 
 Thoughtbot::MileMarker.environments = %w(development staging production)
 
+You can also change some of the styling options (as of right now, just the z-index and background color) by modifying the options hash:
+
+Thoughtbot::MileMarker.options.update(
+	:z_index => 100,
+	:background_color => "purple"
+)
+
 == Requirements
 
 The overlay functionality requires javascript, and uses the prototype library.  So, any page that is using this functionality must also include prototype.
diff --git a/lib/mile_marker.rb b/lib/mile_marker.rb
index fb03594..2e9a83c 100644
--- a/lib/mile_marker.rb
+++ b/lib/mile_marker.rb
@@ -52,7 +52,7 @@ def self.initialize_mile_marker()
   }
   function init_miles() {
     $$('*[mile]').each(function(block, index) {
-      html = '<div id="mile_'+index+'" style="display: none; z-index: #{options[:z_index]}; position: absolute; background-color: #{options[:background_color]}; opacity: 0.4; filter: alpha(opacity=40); color: #eee; font-family: Lucida Sans, Helvetica; font-size: 16px; font-weight: bold; white-space: nowrap; overflow: hidden;"><p style="padding: 3px 5px; background-color: #000; opacity: 1.0; filter: alpha(opacity=100); display: inline; color: #f3f3f3;">'+block.getAttribute('mile')+'</p></div>'
+      html = '<div id="mile_'+index+'" style="display: none; z-index: #{options[:z_index]}; position: absolute; background-color: #{options[:background_color]}; opacity: 0.4; filter: alpha(opacity=40); color: #eee; font-family: Lucida Sans, Helvetica; font-size: 16px; font-weight: bold; white-space: nowrap; overflow: hidden;"><p style="padding: 3px 5px; background-color: #{options[:background_color]}; opacity: 1.0; filter: alpha(opacity=100); display: inline; color: #f3f3f3;">'+block.getAttribute('mile')+'</p></div>'
       new Insertion.Before($(block), html);
       Position.clone($(block), $('mile_'+index));
       if($('mile_'+index).getHeight() <= 25) { $('mile_'+index).setStyle({fontSize: '10px'}); }