Removed blue background from code examples to improve readability
diff --git a/user_guide_src/source/_themes/eldocs/static/asset/css/common.css b/user_guide_src/source/_themes/eldocs/static/asset/css/common.css
index c216c36..ec6adec 100644
--- a/user_guide_src/source/_themes/eldocs/static/asset/css/common.css
+++ b/user_guide_src/source/_themes/eldocs/static/asset/css/common.css
@@ -134,6 +134,10 @@
 	padding: 10px 10px 8px; 
 }
 
+.highlight-ci{
+	background:none;
+}
+
 	.highlight-ci,
 	.highlight-ee,
 	.highlight-rst,