样式优化

src/views/login/index.vue

@@ -126,7 +126,8 @@ export default {
   right: 0;
   bottom: 0;
   background-color: #fff;
-  background-image: url("@/assets/img/login.jpg");
+  background: url("@/assets/img/login.jpg") no-repeat;
+  background-size: 100% 100%;
 }
 .loginFormBox {
   position: absolute;