update

src/pages/login.vue

@@ -84,8 +84,9 @@ height: 100%;
 background:url('../../static/images/login/32copy.png') no-repeat center;
 background-size:contain;
     .login-main{
-        width: 100%;
+        width: 1920px;
         height: 100%;
+        margin:0 auto;
         display: flex;
         .left ,.right{
             margin-left: 20px;