--- a/mobile/android/themes/core/aboutReader.css
+++ b/mobile/android/themes/core/aboutReader.css
@@ -64,17 +64,17 @@ body {
 .font-size8 {
   font-size: 24px;
 }
 
 .font-size9 {
   font-size: 26px;
 }
 
-.message {
+#reader-message {
   margin-top: 40px;
   display: none;
   text-align: center;
   width: 100%;
   font-size: 0.9em;
 }
 
 .header {

--- a/toolkit/components/reader/content/aboutReader.html
+++ b/toolkit/components/reader/content/aboutReader.html
@@ -24,17 +24,17 @@
 
     <div class="content">
       <style scoped>
         @import url("chrome://global/skin/aboutReaderContent.css");
       </style>
       <div id="moz-reader-content"></div>
     </div>
 
-    <div class="message">
+    <div>
       <style scoped>
         @import url("chrome://global/skin/aboutReaderControls.css");
       </style>
       <div id="reader-message"></div>
     </div>
 
     <div id="reader-footer" class="footer">
       <style scoped>

--- a/toolkit/themes/shared/aboutReaderControls.css
+++ b/toolkit/themes/shared/aboutReaderControls.css
@@ -22,17 +22,17 @@
 }
 
 .serif-button {
   font-family: Georgia, "Times New Roman", serif;
 }
 
 /* Loading/error message */
 
-.message {
+#reader-message {
   margin-top: 40px;
   display: none;
   text-align: center;
   width: 100%;
   font-size: 0.9em;
 }
 
 /* Header */