diff --git a/src/components/FormatViewer.vue b/src/components/FormatViewer.vue
index 2232545..0075f18 100644
--- a/src/components/FormatViewer.vue
+++ b/src/components/FormatViewer.vue
@@ -121,7 +121,7 @@ export default {
     width: 122px;
   }
   .format-selector .el-input__inner {
-    height: 22px;
+    height: 22px !important;
   }
 
   .text-formated-container {
diff --git a/src/components/ViewerOverSize.vue b/src/components/ViewerOverSize.vue
index 015f5c5..64f00f2 100644
--- a/src/components/ViewerOverSize.vue
+++ b/src/components/ViewerOverSize.vue
@@ -31,8 +31,13 @@ export default {
 
 <style type="text/css">
   .size-too-large-viewer .el-alert {
-    margin: 10px 0;
+    margin: 3px 0 8px 0;
     color: #f56c6c;
     background-color: #f9dbdb;
   }
+
+  /*text viewer box*/
+  .key-content-string .size-too-large-viewer .el-textarea textarea {
+    height: calc(100vh - 462px);
+  }
 </style>