diff --git a/REB/REB_CSL-Validation.html b/REB/REB_CSL-Validation.html
index eb478a2..fe9d98f 100644
--- a/REB/REB_CSL-Validation.html
+++ b/REB/REB_CSL-Validation.html
@@ -21,7 +21,7 @@
       padding-top: 50px;
       padding-bottom: 50px;
       hyphens: auto;
-      word-wrap: break-word;
+      overflow-wrap: break-word;
       text-rendering: optimizeLegibility;
       font-kerning: normal;
     }
@@ -92,6 +92,7 @@
     pre code {
       padding: 0;
       overflow: visible;
+      overflow-wrap: normal;
     }
     .sourceCode {
      background-color: transparent;