fix keepAlive

src/page/login.vue

@@ -42,9 +42,10 @@
                   size='large'
                   placeholder="验证码"
                   prefix-icon="Refresh"
+                  class='append'
                 >
                   <template v-slot:append>
-                      <img :src='code' style='height: 35px' />
+                      <img :src='code' class='pic' style='height: 40px;background-color: red;background-blend-mode: lighten;' />
                   </template>
                 </el-input>
               </el-form-item>
@@ -192,6 +193,14 @@ export default {
       margin-top: 30px;
     }
   }
-
+}
+.append {
+  :deep(.el-input-group__append){
+    background-color: white;
+  }
+  .pic {
+    border-top: #DDDFE5 1px solid;
+    border-bottom: #DDDFE5 1px solid;
+  }
 }
 </style>