diff --git a/web_app/static/style.css b/web_app/static/style.css
new file mode 100644
index 0000000..06a94d8
--- /dev/null
+++ b/web_app/static/style.css
@@ -0,0 +1,5 @@
+.active i.icon-folder-open{ display:inline-block; }
+.active i.icon-folder-close { display:none;}
+
+.inactive i.icon-folder-close{ display:inline-block; }
+.inactive i.icon-folder-open { display:none;}
\ No newline at end of file