diff --git a/css/index.css b/css/index.css
index f958352..a187d1b 100644
--- a/css/index.css
+++ b/css/index.css
@@ -34,6 +34,7 @@
   width: 610px;
   height: 48px;
   background-color: rgba(255, 255, 255, 0.4);
+  border: 1px solid rgba(255, 255, 255, 0.4);
   border-radius: 183px;
   padding: 0 20px;
   cursor: pointer;
diff --git a/css/index.less b/css/index.less
index f6c45f1..889ca53 100644
--- a/css/index.less
+++ b/css/index.less
@@ -37,6 +37,7 @@
         width: 610px;
         height: 48px;
         background-color: rgba(255, 255, 255, 0.4);
+        border: 1px solid rgba(255, 255, 255, 0.4);
         border-radius: 183px;
         padding: 0 20px;
         cursor: pointer;