diff --git a/src/components/TestAnalyticsPie.css b/src/components/TestAnalyticsPie.css
index 7577fdb..b258b6c 100644
--- a/src/components/TestAnalyticsPie.css
+++ b/src/components/TestAnalyticsPie.css
@@ -20,4 +20,10 @@
  .title {
    fill: teal;
    font-weight: bold;
+}
+
+#category-diagram {
+   display: flex;
+   justify-content: center;
+   align-items: center;
 }
\ No newline at end of file