diff --git a/docs/_static/css/custom.css b/docs/_static/css/custom.css
index c9996e0eea5508b11dd43a6220c16614efa9f863..5779a9dd2cd3ac985c35a7cd5fe68c023beebc14 100644
--- a/docs/_static/css/custom.css
+++ b/docs/_static/css/custom.css
@@ -1,3 +1,7 @@
+.strike {
+	text-decoration: line-through;
+}
+
 /*
 	This fixes the vertical position of list markers when the first
 	element in the <li> is a <pre> block