diff --git a/src/tools/utils.ts b/src/tools/utils.ts
index 8984078..6977db4 100644
--- a/src/tools/utils.ts
+++ b/src/tools/utils.ts
@@ -33,7 +33,7 @@ export function highlighterGroups(...args: any[]) {
     args[2] !== null &&
     args[2] !== undefined
   )
-    return `<span>${args[1]}</span><span class="${highlightClass} b">${args[2]}</span>`
+    return `<span>${args[1]}</span><span class="${highlightClass}">${args[2]}</span>`
   return '&lt;no content&gt;'
 }