diff --git a/CMakeLists.txt b/CMakeLists.txt
index e749c50..3b58c23 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,7 +9,7 @@ option(ENABLE_SVG "Enable SVG support, for generating SVG background images and
 
 include_directories(${CMAKE_SOURCE_DIR}/src)
 
-set(PDF2HTMLEX_VERSION "0.13.2")
+set(PDF2HTMLEX_VERSION "0.13.3")
 set(ARCHIVE_NAME pdf2htmlex-${PDF2HTMLEX_VERSION})
 add_custom_target(dist
     COMMAND git archive --prefix=${ARCHIVE_NAME}/ HEAD
diff --git a/test/browser_tests.py b/test/browser_tests.py
index 0db5cf5..e14b73a 100644
--- a/test/browser_tests.py
+++ b/test/browser_tests.py
@@ -67,12 +67,15 @@ class BrowserTests(Common):
 
         diff_img = ImageChops.difference(ref_img, out_img);
 
-        if diff_img.getbbox() is not None:
+        diff_bbox = diff_img.getbbox()
+        if diff_bbox is not None:
+            diff_size = (diff_bbox[2] - diff_bbox[0]) * (diff_bbox[3] - diff_bbox[1])
+            img_size = ref_img.size[0] * ref_img.size[1]
             if self.SAVE_TMP:
                 # save the diff image
                 # http://stackoverflow.com/questions/15721484/saving-in-png-using-pil-library-after-taking-imagechops-difference-of-two-png
-                diff_img.crop(diff_img.getbbox()).convert('RGB').save(os.path.join(png_out_dir, basefilename + '.diff.png'))
-            self.fail('PNG files differ')
+                diff_img.convert('RGB').save(os.path.join(png_out_dir, basefilename + '.diff.png'))
+            self.fail('PNG files differ by <= %d pixels, (%f%% of %d pixels in total)' % (diff_size, 1.0*diff_size/img_size, img_size))
 
     @unittest.skipIf(Common.GENERATING_MODE, 'Do not auto generate reference for test_fail')
     def test_fail(self):
diff --git a/test/browser_tests/basic_text/basic_text.html b/test/browser_tests/basic_text/basic_text.html
index 6376103..171d451 100644
--- a/test/browser_tests/basic_text/basic_text.html
+++ b/test/browser_tests/basic_text/basic_text.html
@@ -10,7 +10,7 @@
  * Base CSS for pdf2htmlEX
  * Copyright 2012,2013 Lu Wang <coolwanglu@gmail.com> 
  * https://github.com/coolwanglu/pdf2htmlEX/blob/master/share/LICENSE
- */#sidebar{position:absolute;top:0;left:0;bottom:0;width:250px;padding:0;margin:0;overflow:auto}#page-container{position:absolute;top:0;left:0;margin:0;padding:0;border:0}@media screen{#sidebar.opened+#page-container{left:250px}#page-container{bottom:0;right:0;overflow:auto}.loading-indicator{display:none}.loading-indicator.active{display:block;position:absolute;width:64px;height:64px;top:50%;left:50%;margin-top:-32px;margin-left:-32px}.loading-indicator img{position:absolute;top:0;left:0;bottom:0;right:0}}@media print{@page{margin:0}html{margin:0}body{margin:0;-webkit-print-color-adjust:exact}#sidebar{display:none}#page-container{width:auto;height:auto;overflow:visible;background-color:transparent}.d{display:none}}.pf{position:relative;background-color:white;overflow:hidden;margin:0;border:0}.pc{position:absolute;border:0;padding:0;margin:0;top:0;left:0;width:100%;height:100%;overflow:hidden;display:block;transform-origin:0 0;-ms-transform-origin:0 0;-webkit-transform-origin:0 0}.pc.opened{display:block}.bf{position:absolute;border:0;margin:0;top:0;bottom:0;width:100%;height:100%;-ms-user-select:none;-moz-user-select:none;-webkit-user-select:none;user-select:none}.bi{position:absolute;border:0;margin:0;-ms-user-select:none;-moz-user-select:none;-webkit-user-select:none;user-select:none}@media print{.pf{margin:0;box-shadow:none;page-break-after:always;page-break-inside:avoid}@-moz-document url-prefix(){.pf{overflow:visible;border:1px solid #fff}.pc{overflow:visible}}}.c{position:absolute;border:0;padding:0;margin:0;overflow:hidden;display:block}.t{position:absolute;white-space:pre;font-size:1px;transform-origin:0 100%;-ms-transform-origin:0 100%;-webkit-transform-origin:0 100%;unicode-bidi:bidi-override;-moz-font-feature-settings:"liga" 0}.t:after{content:''}.t span{position:relative;display:inline-block;unicode-bidi:bidi-override}._{color:transparent;z-index:-1}::selection{background:rgba(127,255,255,0.4)}::-moz-selection{background:rgba(127,255,255,0.4)}.pi{display:none}.d{position:absolute;transform-origin:0 100%;-ms-transform-origin:0 100%;-webkit-transform-origin:0 100%}</style>
+ */#sidebar{position:absolute;top:0;left:0;bottom:0;width:250px;padding:0;margin:0;overflow:auto}#page-container{position:absolute;top:0;left:0;margin:0;padding:0;border:0}@media screen{#sidebar.opened+#page-container{left:250px}#page-container{bottom:0;right:0;overflow:auto}.loading-indicator{display:none}.loading-indicator.active{display:block;position:absolute;width:64px;height:64px;top:50%;left:50%;margin-top:-32px;margin-left:-32px}.loading-indicator img{position:absolute;top:0;left:0;bottom:0;right:0}}@media print{@page{margin:0}html{margin:0}body{margin:0;-webkit-print-color-adjust:exact}#sidebar{display:none}#page-container{width:auto;height:auto;overflow:visible;background-color:transparent}.d{display:none}}.pf{position:relative;background-color:white;overflow:hidden;margin:0;border:0}.pc{position:absolute;border:0;padding:0;margin:0;top:0;left:0;width:100%;height:100%;overflow:hidden;display:block;transform-origin:0 0;-ms-transform-origin:0 0;-webkit-transform-origin:0 0}.pc.opened{display:block}.bf{position:absolute;border:0;margin:0;top:0;bottom:0;width:100%;height:100%;-ms-user-select:none;-moz-user-select:none;-webkit-user-select:none;user-select:none}.bi{position:absolute;border:0;margin:0;-ms-user-select:none;-moz-user-select:none;-webkit-user-select:none;user-select:none}@media print{.pf{margin:0;box-shadow:none;page-break-after:always;page-break-inside:avoid}@-moz-document url-prefix(){.pf{overflow:visible;border:1px solid #fff}.pc{overflow:visible}}}.c{position:absolute;border:0;padding:0;margin:0;overflow:hidden;display:block}.t{position:absolute;white-space:pre;font-size:1px;transform-origin:0 100%;-ms-transform-origin:0 100%;-webkit-transform-origin:0 100%;unicode-bidi:bidi-override;-moz-font-feature-settings:"liga" 0}.t:after{content:''}.t:before{content:'';display:inline-block}.t span{position:relative;unicode-bidi:bidi-override}._{display:inline-block;color:transparent;z-index:-1}::selection{background:rgba(127,255,255,0.4)}::-moz-selection{background:rgba(127,255,255,0.4)}.pi{display:none}.d{position:absolute;transform-origin:0 100%;-ms-transform-origin:0 100%;-webkit-transform-origin:0 100%}.it{border:0;background-color:rgba(255,255,255,0.0)}.ir:hover{cursor:pointer}</style>
 <style type="text/css">
 /* CSS for test cases */
 #page-container {
@@ -36,9 +36,9 @@
 .sc0{-webkit-text-stroke:0.015em transparent;text-shadow:none;}
 }
 .ws0{word-spacing:0.000000px;}
-._1{display:inline;margin-left:-3.997949px;}
-._2{display:inline;margin-left:-1.115811px;}
-._0{display:inline-block;width:39.850619px;}
+._1{margin-left:-3.997949px;}
+._2{margin-left:-1.115811px;}
+._0{width:39.850619px;}
 .fc0{color:rgb(0,0,0);}
 .fs1{font-size:19.925200px;}
 .fs0{font-size:39.850400px;}
@@ -69,9 +69,9 @@
 .ls1{letter-spacing:20.400000pt;}
 .ls2{letter-spacing:20.483469pt;}
 .ws0{word-spacing:0.000000pt;}
-._1{display:inline;margin-left:-4.077908pt;}
-._2{display:inline;margin-left:-1.138127pt;}
-._0{display:inline-block;width:40.647631pt;}
+._1{margin-left:-4.077908pt;}
+._2{margin-left:-1.138127pt;}
+._0{width:40.647631pt;}
 .fs1{font-size:20.323704pt;}
 .fs0{font-size:40.647408pt;}
 .fs2{font-size:40.813722pt;}
diff --git a/test/browser_tests/basic_text/f1.woff b/test/browser_tests/basic_text/f1.woff
index dee7df4..f655ddf 100644
Binary files a/test/browser_tests/basic_text/f1.woff and b/test/browser_tests/basic_text/f1.woff differ
diff --git a/test/browser_tests/basic_text/f2.woff b/test/browser_tests/basic_text/f2.woff
index 6d5c3ad..5a70937 100644
Binary files a/test/browser_tests/basic_text/f2.woff and b/test/browser_tests/basic_text/f2.woff differ
diff --git a/test/browser_tests/geneve_1564/f1.woff b/test/browser_tests/geneve_1564/f1.woff
index 583c20a..4d71f36 100644
Binary files a/test/browser_tests/geneve_1564/f1.woff and b/test/browser_tests/geneve_1564/f1.woff differ
diff --git a/test/browser_tests/geneve_1564/f2.woff b/test/browser_tests/geneve_1564/f2.woff
index c5d9e6b..9470c45 100644
Binary files a/test/browser_tests/geneve_1564/f2.woff and b/test/browser_tests/geneve_1564/f2.woff differ
diff --git a/test/browser_tests/geneve_1564/geneve_1564.html b/test/browser_tests/geneve_1564/geneve_1564.html
index df19e00..ffb25bf 100644
--- a/test/browser_tests/geneve_1564/geneve_1564.html
+++ b/test/browser_tests/geneve_1564/geneve_1564.html
@@ -10,7 +10,7 @@
  * Base CSS for pdf2htmlEX
  * Copyright 2012,2013 Lu Wang <coolwanglu@gmail.com> 
  * https://github.com/coolwanglu/pdf2htmlEX/blob/master/share/LICENSE
- */#sidebar{position:absolute;top:0;left:0;bottom:0;width:250px;padding:0;margin:0;overflow:auto}#page-container{position:absolute;top:0;left:0;margin:0;padding:0;border:0}@media screen{#sidebar.opened+#page-container{left:250px}#page-container{bottom:0;right:0;overflow:auto}.loading-indicator{display:none}.loading-indicator.active{display:block;position:absolute;width:64px;height:64px;top:50%;left:50%;margin-top:-32px;margin-left:-32px}.loading-indicator img{position:absolute;top:0;left:0;bottom:0;right:0}}@media print{@page{margin:0}html{margin:0}body{margin:0;-webkit-print-color-adjust:exact}#sidebar{display:none}#page-container{width:auto;height:auto;overflow:visible;background-color:transparent}.d{display:none}}.pf{position:relative;background-color:white;overflow:hidden;margin:0;border:0}.pc{position:absolute;border:0;padding:0;margin:0;top:0;left:0;width:100%;height:100%;overflow:hidden;display:block;transform-origin:0 0;-ms-transform-origin:0 0;-webkit-transform-origin:0 0}.pc.opened{display:block}.bf{position:absolute;border:0;margin:0;top:0;bottom:0;width:100%;height:100%;-ms-user-select:none;-moz-user-select:none;-webkit-user-select:none;user-select:none}.bi{position:absolute;border:0;margin:0;-ms-user-select:none;-moz-user-select:none;-webkit-user-select:none;user-select:none}@media print{.pf{margin:0;box-shadow:none;page-break-after:always;page-break-inside:avoid}@-moz-document url-prefix(){.pf{overflow:visible;border:1px solid #fff}.pc{overflow:visible}}}.c{position:absolute;border:0;padding:0;margin:0;overflow:hidden;display:block}.t{position:absolute;white-space:pre;font-size:1px;transform-origin:0 100%;-ms-transform-origin:0 100%;-webkit-transform-origin:0 100%;unicode-bidi:bidi-override;-moz-font-feature-settings:"liga" 0}.t:after{content:''}.t span{position:relative;display:inline-block;unicode-bidi:bidi-override}._{color:transparent;z-index:-1}::selection{background:rgba(127,255,255,0.4)}::-moz-selection{background:rgba(127,255,255,0.4)}.pi{display:none}.d{position:absolute;transform-origin:0 100%;-ms-transform-origin:0 100%;-webkit-transform-origin:0 100%}</style>
+ */#sidebar{position:absolute;top:0;left:0;bottom:0;width:250px;padding:0;margin:0;overflow:auto}#page-container{position:absolute;top:0;left:0;margin:0;padding:0;border:0}@media screen{#sidebar.opened+#page-container{left:250px}#page-container{bottom:0;right:0;overflow:auto}.loading-indicator{display:none}.loading-indicator.active{display:block;position:absolute;width:64px;height:64px;top:50%;left:50%;margin-top:-32px;margin-left:-32px}.loading-indicator img{position:absolute;top:0;left:0;bottom:0;right:0}}@media print{@page{margin:0}html{margin:0}body{margin:0;-webkit-print-color-adjust:exact}#sidebar{display:none}#page-container{width:auto;height:auto;overflow:visible;background-color:transparent}.d{display:none}}.pf{position:relative;background-color:white;overflow:hidden;margin:0;border:0}.pc{position:absolute;border:0;padding:0;margin:0;top:0;left:0;width:100%;height:100%;overflow:hidden;display:block;transform-origin:0 0;-ms-transform-origin:0 0;-webkit-transform-origin:0 0}.pc.opened{display:block}.bf{position:absolute;border:0;margin:0;top:0;bottom:0;width:100%;height:100%;-ms-user-select:none;-moz-user-select:none;-webkit-user-select:none;user-select:none}.bi{position:absolute;border:0;margin:0;-ms-user-select:none;-moz-user-select:none;-webkit-user-select:none;user-select:none}@media print{.pf{margin:0;box-shadow:none;page-break-after:always;page-break-inside:avoid}@-moz-document url-prefix(){.pf{overflow:visible;border:1px solid #fff}.pc{overflow:visible}}}.c{position:absolute;border:0;padding:0;margin:0;overflow:hidden;display:block}.t{position:absolute;white-space:pre;font-size:1px;transform-origin:0 100%;-ms-transform-origin:0 100%;-webkit-transform-origin:0 100%;unicode-bidi:bidi-override;-moz-font-feature-settings:"liga" 0}.t:after{content:''}.t:before{content:'';display:inline-block}.t span{position:relative;unicode-bidi:bidi-override}._{display:inline-block;color:transparent;z-index:-1}::selection{background:rgba(127,255,255,0.4)}::-moz-selection{background:rgba(127,255,255,0.4)}.pi{display:none}.d{position:absolute;transform-origin:0 100%;-ms-transform-origin:0 100%;-webkit-transform-origin:0 100%}.it{border:0;background-color:rgba(255,255,255,0.0)}.ir:hover{cursor:pointer}</style>
 <style type="text/css">
 /* CSS for test cases */
 #page-container {
@@ -31,37 +31,37 @@
 .sc0{-webkit-text-stroke:0.015em transparent;text-shadow:none;}
 }
 .ws0{word-spacing:0.000000px;}
-._1d{display:inline;margin-left:-6.519460px;}
-._a{display:inline;margin-left:-3.443040px;}
-._1{display:inline;margin-left:-1.586368px;}
-._1e{display:inline-block;width:1.012808px;}
-._9{display:inline-block;width:3.793720px;}
-._7{display:inline-block;width:5.228320px;}
-._4{display:inline-block;width:6.376000px;}
-._6{display:inline-block;width:7.491800px;}
-._8{display:inline-block;width:8.607600px;}
-._5{display:inline-block;width:10.105960px;}
-._2{display:inline-block;width:11.419416px;}
-._d{display:inline-block;width:12.528840px;}
-._19{display:inline-block;width:13.676520px;}
-._16{display:inline-block;width:14.776380px;}
-._15{display:inline-block;width:15.971880px;}
-._17{display:inline-block;width:17.263020px;}
-._3{display:inline-block;width:18.525548px;}
-._0{display:inline-block;width:19.730452px;}
-._10{display:inline-block;width:20.773088px;}
-._12{display:inline-block;width:21.805920px;}
-._1c{display:inline-block;width:23.448000px;}
-._1a{display:inline-block;width:25.657576px;}
-._e{display:inline-block;width:26.922660px;}
-._1b{display:inline-block;width:28.164808px;}
-._14{display:inline-block;width:30.891720px;}
-._b{display:inline-block;width:36.779040px;}
-._f{display:inline-block;width:37.873440px;}
-._13{display:inline-block;width:40.312260px;}
-._11{display:inline-block;width:43.516200px;}
-._18{display:inline-block;width:47.820000px;}
-._c{display:inline-block;width:57.986452px;}
+._1d{margin-left:-6.519460px;}
+._a{margin-left:-3.443040px;}
+._1{margin-left:-1.586368px;}
+._1e{width:1.012808px;}
+._9{width:3.793720px;}
+._7{width:5.228320px;}
+._4{width:6.376000px;}
+._6{width:7.491800px;}
+._8{width:8.607600px;}
+._5{width:10.105960px;}
+._2{width:11.419416px;}
+._d{width:12.528840px;}
+._19{width:13.676520px;}
+._16{width:14.776380px;}
+._15{width:15.971880px;}
+._17{width:17.263020px;}
+._3{width:18.525548px;}
+._0{width:19.730452px;}
+._10{width:20.773088px;}
+._12{width:21.805920px;}
+._1c{width:23.448000px;}
+._1a{width:25.657576px;}
+._e{width:26.922660px;}
+._1b{width:28.164808px;}
+._14{width:30.891720px;}
+._b{width:36.779040px;}
+._f{width:37.873440px;}
+._13{width:40.312260px;}
+._11{width:43.516200px;}
+._18{width:47.820000px;}
+._c{width:57.986452px;}
 .fc0{color:rgb(0,0,0);}
 .fs5{font-size:19.924000px;}
 .fs4{font-size:23.912000px;}
@@ -381,37 +381,37 @@
 .v0{vertical-align:0.000000pt;}
 .ls0{letter-spacing:0.000000pt;}
 .ws0{word-spacing:0.000000pt;}
-._1d{display:inline;margin-left:-6.468174pt;}
-._a{display:inline;margin-left:-3.415955pt;}
-._1{display:inline;margin-left:-1.573889pt;}
-._1e{display:inline-block;width:1.004841pt;}
-._9{display:inline-block;width:3.763876pt;}
-._7{display:inline-block;width:5.187191pt;}
-._4{display:inline-block;width:6.325842pt;}
-._6{display:inline-block;width:7.432865pt;}
-._8{display:inline-block;width:8.539887pt;}
-._5{display:inline-block;width:10.026460pt;}
-._2{display:inline-block;width:11.329583pt;}
-._d{display:inline-block;width:12.430280pt;}
-._19{display:inline-block;width:13.568931pt;}
-._16{display:inline-block;width:14.660139pt;}
-._15{display:inline-block;width:15.846235pt;}
-._17{display:inline-block;width:17.127218pt;}
-._3{display:inline-block;width:18.379814pt;}
-._0{display:inline-block;width:19.575239pt;}
-._10{display:inline-block;width:20.609673pt;}
-._12{display:inline-block;width:21.634380pt;}
-._1c{display:inline-block;width:23.263542pt;}
-._1a{display:inline-block;width:25.455736pt;}
-._e{display:inline-block;width:26.710868pt;}
-._1b{display:inline-block;width:27.943245pt;}
-._14{display:inline-block;width:30.648705pt;}
-._b{display:inline-block;width:36.489712pt;}
-._f{display:inline-block;width:37.575502pt;}
-._13{display:inline-block;width:39.995137pt;}
-._11{display:inline-block;width:43.173873pt;}
-._18{display:inline-block;width:47.443816pt;}
-._c{display:inline-block;width:57.530292pt;}
+._1d{margin-left:-6.468174pt;}
+._a{margin-left:-3.415955pt;}
+._1{margin-left:-1.573889pt;}
+._1e{width:1.004841pt;}
+._9{width:3.763876pt;}
+._7{width:5.187191pt;}
+._4{width:6.325842pt;}
+._6{width:7.432865pt;}
+._8{width:8.539887pt;}
+._5{width:10.026460pt;}
+._2{width:11.329583pt;}
+._d{width:12.430280pt;}
+._19{width:13.568931pt;}
+._16{width:14.660139pt;}
+._15{width:15.846235pt;}
+._17{width:17.127218pt;}
+._3{width:18.379814pt;}
+._0{width:19.575239pt;}
+._10{width:20.609673pt;}
+._12{width:21.634380pt;}
+._1c{width:23.263542pt;}
+._1a{width:25.455736pt;}
+._e{width:26.710868pt;}
+._1b{width:27.943245pt;}
+._14{width:30.648705pt;}
+._b{width:36.489712pt;}
+._f{width:37.575502pt;}
+._13{width:39.995137pt;}
+._11{width:43.173873pt;}
+._18{width:47.443816pt;}
+._c{width:57.530292pt;}
 .fs5{font-size:19.767265pt;}
 .fs4{font-size:23.723892pt;}
 .fs3{font-size:31.629211pt;}
diff --git a/test/browser_tests/text_visibility/f1.woff b/test/browser_tests/text_visibility/f1.woff
index 2d60456..97f7e0b 100644
Binary files a/test/browser_tests/text_visibility/f1.woff and b/test/browser_tests/text_visibility/f1.woff differ
diff --git a/test/browser_tests/text_visibility/f2.woff b/test/browser_tests/text_visibility/f2.woff
index 9a9023d..9e136a3 100644
Binary files a/test/browser_tests/text_visibility/f2.woff and b/test/browser_tests/text_visibility/f2.woff differ
diff --git a/test/browser_tests/text_visibility/text_visibility.html b/test/browser_tests/text_visibility/text_visibility.html
index 25f457e..6c0001d 100644
--- a/test/browser_tests/text_visibility/text_visibility.html
+++ b/test/browser_tests/text_visibility/text_visibility.html
@@ -10,7 +10,7 @@
  * Base CSS for pdf2htmlEX
  * Copyright 2012,2013 Lu Wang <coolwanglu@gmail.com> 
  * https://github.com/coolwanglu/pdf2htmlEX/blob/master/share/LICENSE
- */#sidebar{position:absolute;top:0;left:0;bottom:0;width:250px;padding:0;margin:0;overflow:auto}#page-container{position:absolute;top:0;left:0;margin:0;padding:0;border:0}@media screen{#sidebar.opened+#page-container{left:250px}#page-container{bottom:0;right:0;overflow:auto}.loading-indicator{display:none}.loading-indicator.active{display:block;position:absolute;width:64px;height:64px;top:50%;left:50%;margin-top:-32px;margin-left:-32px}.loading-indicator img{position:absolute;top:0;left:0;bottom:0;right:0}}@media print{@page{margin:0}html{margin:0}body{margin:0;-webkit-print-color-adjust:exact}#sidebar{display:none}#page-container{width:auto;height:auto;overflow:visible;background-color:transparent}.d{display:none}}.pf{position:relative;background-color:white;overflow:hidden;margin:0;border:0}.pc{position:absolute;border:0;padding:0;margin:0;top:0;left:0;width:100%;height:100%;overflow:hidden;display:block;transform-origin:0 0;-ms-transform-origin:0 0;-webkit-transform-origin:0 0}.pc.opened{display:block}.bf{position:absolute;border:0;margin:0;top:0;bottom:0;width:100%;height:100%;-ms-user-select:none;-moz-user-select:none;-webkit-user-select:none;user-select:none}.bi{position:absolute;border:0;margin:0;-ms-user-select:none;-moz-user-select:none;-webkit-user-select:none;user-select:none}@media print{.pf{margin:0;box-shadow:none;page-break-after:always;page-break-inside:avoid}@-moz-document url-prefix(){.pf{overflow:visible;border:1px solid #fff}.pc{overflow:visible}}}.c{position:absolute;border:0;padding:0;margin:0;overflow:hidden;display:block}.t{position:absolute;white-space:pre;font-size:1px;transform-origin:0 100%;-ms-transform-origin:0 100%;-webkit-transform-origin:0 100%;unicode-bidi:bidi-override;-moz-font-feature-settings:"liga" 0}.t:after{content:''}.t span{position:relative;display:inline-block;unicode-bidi:bidi-override}._{color:transparent;z-index:-1}::selection{background:rgba(127,255,255,0.4)}::-moz-selection{background:rgba(127,255,255,0.4)}.pi{display:none}.d{position:absolute;transform-origin:0 100%;-ms-transform-origin:0 100%;-webkit-transform-origin:0 100%}</style>
+ */#sidebar{position:absolute;top:0;left:0;bottom:0;width:250px;padding:0;margin:0;overflow:auto}#page-container{position:absolute;top:0;left:0;margin:0;padding:0;border:0}@media screen{#sidebar.opened+#page-container{left:250px}#page-container{bottom:0;right:0;overflow:auto}.loading-indicator{display:none}.loading-indicator.active{display:block;position:absolute;width:64px;height:64px;top:50%;left:50%;margin-top:-32px;margin-left:-32px}.loading-indicator img{position:absolute;top:0;left:0;bottom:0;right:0}}@media print{@page{margin:0}html{margin:0}body{margin:0;-webkit-print-color-adjust:exact}#sidebar{display:none}#page-container{width:auto;height:auto;overflow:visible;background-color:transparent}.d{display:none}}.pf{position:relative;background-color:white;overflow:hidden;margin:0;border:0}.pc{position:absolute;border:0;padding:0;margin:0;top:0;left:0;width:100%;height:100%;overflow:hidden;display:block;transform-origin:0 0;-ms-transform-origin:0 0;-webkit-transform-origin:0 0}.pc.opened{display:block}.bf{position:absolute;border:0;margin:0;top:0;bottom:0;width:100%;height:100%;-ms-user-select:none;-moz-user-select:none;-webkit-user-select:none;user-select:none}.bi{position:absolute;border:0;margin:0;-ms-user-select:none;-moz-user-select:none;-webkit-user-select:none;user-select:none}@media print{.pf{margin:0;box-shadow:none;page-break-after:always;page-break-inside:avoid}@-moz-document url-prefix(){.pf{overflow:visible;border:1px solid #fff}.pc{overflow:visible}}}.c{position:absolute;border:0;padding:0;margin:0;overflow:hidden;display:block}.t{position:absolute;white-space:pre;font-size:1px;transform-origin:0 100%;-ms-transform-origin:0 100%;-webkit-transform-origin:0 100%;unicode-bidi:bidi-override;-moz-font-feature-settings:"liga" 0}.t:after{content:''}.t:before{content:'';display:inline-block}.t span{position:relative;unicode-bidi:bidi-override}._{display:inline-block;color:transparent;z-index:-1}::selection{background:rgba(127,255,255,0.4)}::-moz-selection{background:rgba(127,255,255,0.4)}.pi{display:none}.d{position:absolute;transform-origin:0 100%;-ms-transform-origin:0 100%;-webkit-transform-origin:0 100%}.it{border:0;background-color:rgba(255,255,255,0.0)}.ir:hover{cursor:pointer}</style>
 <style type="text/css">
 /* CSS for test cases */
 #page-container {
@@ -35,12 +35,12 @@
 .sc0{-webkit-text-stroke:0.015em transparent;text-shadow:none;}
 }
 .ws0{word-spacing:0.000000px;}
-._0{display:inline-block;width:1.114017px;}
-._3{display:inline-block;width:12.413330px;}
-._1{display:inline-block;width:14.323073px;}
-._5{display:inline-block;width:26.028589px;}
-._4{display:inline-block;width:36.921698px;}
-._2{display:inline-block;width:42.650928px;}
+._0{width:1.114017px;}
+._3{width:12.413330px;}
+._1{width:14.323073px;}
+._5{width:26.028589px;}
+._4{width:36.921698px;}
+._2{width:42.650928px;}
 .fc1{color:transparent;}
 .fc0{color:rgb(0,0,0);}
 .fs3{font-size:34.350544px;}
@@ -91,12 +91,12 @@
 .v0{vertical-align:0.000000pt;}
 .ls0{letter-spacing:0.000000pt;}
 .ws0{word-spacing:0.000000pt;}
-._0{display:inline-block;width:1.105245pt;}
-._3{display:inline-block;width:12.315587pt;}
-._1{display:inline-block;width:14.210292pt;}
-._5{display:inline-block;width:25.823638pt;}
-._4{display:inline-block;width:36.630975pt;}
-._2{display:inline-block;width:42.315093pt;}
+._0{width:1.105245pt;}
+._3{width:12.315587pt;}
+._1{width:14.210292pt;}
+._5{width:25.823638pt;}
+._4{width:36.630975pt;}
+._2{width:42.315093pt;}
 .fs3{font-size:34.080066pt;}
 .fs4{font-size:51.120099pt;}
 .fs2{font-size:157.892134pt;}
diff --git a/test/test.py b/test/test.py
index 8fa0494..253abaa 100755
--- a/test/test.py
+++ b/test/test.py
@@ -68,7 +68,9 @@ class Common(object):
                '--dest-dir', self.cur_output_dir
               ] + args
 
-        return_code = subprocess.call(list(map(str, args)))
+        with open(os.devnull, 'w') as fnull:
+            return_code = subprocess.call(list(map(str, args)), stderr=fnull)
+
         self.assertEquals(return_code, 0, 'cannot execute pdf2htmlEX')
 
         files = os.listdir(self.cur_output_dir)