diff --git a/packages/test-in-browser/driver.css b/packages/test-in-browser/driver.css
index f8489a5a5f..2d8aba3661 100644
--- a/packages/test-in-browser/driver.css
+++ b/packages/test-in-browser/driver.css
@@ -103,7 +103,10 @@
 .test_table .event .fail { color: #d00; }
 .test_table .event .exception { color: #d00; }
 .test_table .event .nodata { color: #ccc; font-style: italic; }
-.test_table .event .xtimes { font-weight: bold; }
+
+.test_table .event .xtimes,
+.test_table .event .failkey
+ { font-weight: bold; }
 
 .test_table .event .debug {
     display: none;
diff --git a/packages/test-in-browser/driver.html b/packages/test-in-browser/driver.html
index 08721ac898..31c20deff3 100644
--- a/packages/test-in-browser/driver.html
+++ b/packages/test-in-browser/driver.html
@@ -76,7 +76,7 @@
         {{#if this}}
           {{#if type}}— {{type}}{{/if}}
           {{#each details}}
-            - <strong>{{key}}</strong> {{val}}
+            - <span class="failkey">{{key}}</span> {{val}}
           {{/each}}
         {{/if}}
         {{#if stack}}<pre>{{stack}}</pre>{{/if}}