diff --git a/scm-ui/ui-styles/src/syntax-highlighting.css b/scm-ui/ui-styles/src/syntax-highlighting.css
index 4423c62319..68ab444015 100644
--- a/scm-ui/ui-styles/src/syntax-highlighting.css
+++ b/scm-ui/ui-styles/src/syntax-highlighting.css
@@ -188,9 +188,6 @@ pre[class*="language-"] {
 .style .token.string {
 
   color: #686868;
-
-  background: #ffffff;
-
 }
 
 .token.atrule,
diff --git a/scm-ui/ui-styles/src/syntax-highlighting.ts b/scm-ui/ui-styles/src/syntax-highlighting.ts
index 3318b805d6..004013a2a1 100644
--- a/scm-ui/ui-styles/src/syntax-highlighting.ts
+++ b/scm-ui/ui-styles/src/syntax-highlighting.ts
@@ -149,24 +149,19 @@ export default {
   },
   operator: {
     color: "#686868",
-    background: "#ffffff",
   },
   entity: {
     color: "#686868",
-    background: "#ffffff",
     cursor: "help",
   },
   url: {
     color: "#686868",
-    background: "#ffffff",
   },
   ".language-css .token.string": {
     color: "#686868",
-    background: "#ffffff",
   },
   ".style .token.string": {
     color: "#686868",
-    background: "#ffffff",
   },
   atrule: {
     color: "#00a984",