diff --git a/src/app/group-monitor/test-session/test-session.component.css b/src/app/group-monitor/test-session/test-session.component.css
index ff96e008affcfd05f4ca670083687128d9f92fd5..a3e2dd6ee5cd7a95b46935ab5264c14e77decda5 100644
--- a/src/app/group-monitor/test-session/test-session.component.css
+++ b/src/app/group-monitor/test-session/test-session.component.css
@@ -92,7 +92,6 @@ h2 {
   min-width: 1em;
   text-align: center;
   cursor: pointer;
-  transform-style: preserve-3d;
 }
 
 .unit.aggregated {