diff --git a/src/components/CodemirrorEditor/EditorHeader/index.vue b/src/components/CodemirrorEditor/EditorHeader/index.vue
index 29ec3d4..d876522 100644
--- a/src/components/CodemirrorEditor/EditorHeader/index.vue
+++ b/src/components/CodemirrorEditor/EditorHeader/index.vue
@@ -341,8 +341,8 @@ export default {
         clipboardDiv.innerHTML = mergeCss(clipboardDiv.innerHTML)
         if (this.isMacCodeBlock) {
           clipboardDiv.innerHTML = clipboardDiv.innerHTML.replaceAll(
-            /(<code class="prettyprint.+?(?<=style="))/g,
-            `$1font-family: Menlo, 'Operator Mono', Consolas, Monaco, monospace;`
+            /(<code class="prettyprint[^>]*)(style=")/g,
+            `$1style="font-family: Menlo, 'Operator Mono', Consolas, Monaco, monospace;`
           )
         }
         clipboardDiv.focus()