diff --git a/packages/frontend/src/components/MkCode.vue b/packages/frontend/src/components/MkCode.vue
index ede068b20d3f..a3c80e743b6a 100644
--- a/packages/frontend/src/components/MkCode.vue
+++ b/packages/frontend/src/components/MkCode.vue
@@ -80,11 +80,9 @@ function copy() {
 .codePlaceholderRoot {
 	display: block;
 	width: 100%;
-	background: none;
 	border: none;
 	outline: none;
   font: inherit;
-  color: inherit;
 	cursor: pointer;
 
 	box-sizing: border-box;