diff --git a/util/dvsim/style.css b/util/dvsim/style.css
index 400cd56..784ed71 100644
--- a/util/dvsim/style.css
+++ b/util/dvsim/style.css
@@ -25,9 +25,6 @@
 .results pre {
    overflow-x: auto;
    white-space: pre-wrap;
-   white-space: -moz-pre-wrap;
-   white-space: -pre-wrap;
-   white-space: -o-pre-wrap;
 }
 
 .results h1, .results h2, .results h3 {
diff --git a/util/dvsim/utils.py b/util/dvsim/utils.py
index e1cd4c1..46e655f 100644
--- a/util/dvsim/utils.py
+++ b/util/dvsim/utils.py
@@ -204,12 +204,9 @@
     html_text += "</html>\n"
     html_text = htmc_color_pc_cells(html_text)
     # this function converts css style to inline html style
-    # set cssutils logging to critical because `style.css` is incompatible
-    # with css level 2.1 checking. But these ERRORs do not affect the inline
-    # style coversion. TODO: fix the errors from cssutils
     html_text = transform(html_text,
                           external_styles=css_file,
-                          cssutils_logging_level=log.CRITICAL)
+                          cssutils_logging_level=log.ERROR)
     return html_text