diff --git a/test/TestHelper.js b/test/TestHelper.js
index f7f6dcf7..d1f4c90a 100644
--- a/test/TestHelper.js
+++ b/test/TestHelper.js
@@ -10,7 +10,7 @@ insertCSS('bpmn-embedded.css', require('bpmn-font/dist/css/bpmn-embedded.css'));
 
 insertCSS('diagram-js-testing.css',
   'body .test-container { height: auto }' +
-  'body .test-container .test-content-container { height: 90vmin; }'
+  'body .test-content-container { height: 90vh; }'
 );
 
 
diff --git a/test/helper/index.js b/test/helper/index.js
index 7cbf8e94..8a0ab180 100644
--- a/test/helper/index.js
+++ b/test/helper/index.js
@@ -72,11 +72,11 @@ export function bootstrapBpmnJS(BpmnJS, diagram, options, locals) {
       testContainer = TestContainer.get(this);
     } catch (e) {
       testContainer = document.createElement('div');
+      testContainer.classList.add('test-content-container');
+
       document.body.appendChild(testContainer);
     }
 
-    testContainer.classList.add('test-container');
-
     var _options = options,
         _locals = locals;