diff --git a/src/core/view/components/input/index.vue b/src/core/view/components/input/index.vue
index 89a9cef92bca9a64a3327804c9ed21b0c5035372..fe6a8f94ca46dcb9517fa03297a170aa139c44b4 100644
--- a/src/core/view/components/input/index.vue
+++ b/src/core/view/components/input/index.vue
@@ -72,7 +72,7 @@ export default {
     },
     placeholderClass: {
       type: String,
-      default: ''
+      default: 'input-placeholder'
     },
     disabled: {
       type: [Boolean, String],
diff --git a/src/core/view/components/textarea/index.vue b/src/core/view/components/textarea/index.vue
index 645b9677c76a8717408582c28eecd5534ad7b7d6..a6ea55d3a65db5a6a548c973f038a0cef7fe3e88 100644
--- a/src/core/view/components/textarea/index.vue
+++ b/src/core/view/components/textarea/index.vue
@@ -83,7 +83,7 @@ export default {
     },
     placeholderClass: {
       type: String,
-      default: ''
+      default: 'textarea-placeholder'
     },
     placeholderStyle: {
       type: String,