diff --git a/test/regressions/TestViewer.js b/test/regressions/TestViewer.js
index 24f569d141..831fffd319 100644
--- a/test/regressions/TestViewer.js
+++ b/test/regressions/TestViewer.js
@@ -73,7 +73,7 @@ function TestViewer(props) {
         <div
           aria-busy={!ready}
           data-testid="testcase"
-          style={{ backgroundColor: '#fff', display: 'inline-block', padding: '8px' }}
+          style={{ display: 'block', padding: '8px' }}
         >
           {children}
         </div>