diff --git a/networking/osi_model/osi_model_assets/osi_model.css b/networking/osi_model/osi_model_assets/osi_model.css
index d77081f..7530f8c 100644
--- a/networking/osi_model/osi_model_assets/osi_model.css
+++ b/networking/osi_model/osi_model_assets/osi_model.css
@@ -51,4 +51,8 @@
     color: #ddd;
     min-width: 160px;
     z-index: 1;
+}
+
+.osiOshow {
+    display: block;
 }
\ No newline at end of file