diff --git a/src/main/resources/static/index.html b/src/main/resources/static/index.html
index f925630..7457f46 100644
--- a/src/main/resources/static/index.html
+++ b/src/main/resources/static/index.html
@@ -34,7 +34,7 @@
         /* 输入框获取焦点时移除 placeholder */
         .dzm-textarea:focus:before {
             content: none;
-            border: thick #019AFF;
+            border: 5px solid #019aff;
         }
 
         .textcopy {