diff --git a/module/testtask/view/results.html.php b/module/testtask/view/results.html.php
index 7b8b019e2f..c6b525032a 100644
--- a/module/testtask/view/results.html.php
+++ b/module/testtask/view/results.html.php
@@ -23,6 +23,7 @@
  */
 ?>
 <?php include '../../common/view/header.lite.html.php';?>
+<style>body{background:white}</style>
 <div class='yui-d0'>
   <h1>CASE#<?php echo $run->case->id. $lang->colon . $run->case->title;?></h1>
   <?php foreach($results as $result):?>
diff --git a/module/testtask/view/runcase.html.php b/module/testtask/view/runcase.html.php
index 1b401a5802..4b8af60286 100644
--- a/module/testtask/view/runcase.html.php
+++ b/module/testtask/view/runcase.html.php
@@ -23,6 +23,7 @@
  */
 ?>
 <?php include '../../common/view/header.lite.html.php';?>
+<style>body{background:white}</style>
 <div class='yui-d0'>
   <form method='post'>
   <table class='table-1 bd-1px'>
diff --git a/module/tree/view/edit.html.php b/module/tree/view/edit.html.php
index 3ccb09e450..11edfa8c49 100644
--- a/module/tree/view/edit.html.php
+++ b/module/tree/view/edit.html.php
@@ -23,6 +23,7 @@
  */
 ?>
 <?php include '../../common/view/header.lite.html.php';?>
+<style>body{background:white}</style>
 <div id='yui-d0' style='margin-top:20px'>
   <form method='post'>
     <table class='table-1'>