diff --git a/html/css/custom/styles.css b/html/css/custom/styles.css
index d6558005fa211f149eaa28751589c293770d462f..9060d1ab8344f4cf63cb879bcd74c674777e4a9c 100644
--- a/html/css/custom/styles.css
+++ b/html/css/custom/styles.css
@@ -649,7 +649,7 @@ legend {
 }
 
 /* OVERLIB BG*/
-.lib_overlib {
+.overlib-contents {
     background: inherit;
     background-color: #333;
     color:cyan;