diff --git a/docs/_static/css/custom.css b/docs/_static/css/custom.css
index e69de29..75251cd 100644
--- a/docs/_static/css/custom.css
+++ b/docs/_static/css/custom.css
@@ -0,0 +1 @@
+.rst-current-version { background-color:red; } 
\ No newline at end of file