diff --git a/.eslintrc.js b/.eslintrc.js
index 64f7572..ccec4fb 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -25,7 +25,7 @@ module.exports = {
     'generator-star-spacing': 'off',
     // allow debugger during development
     'no-debugger': process.env.NODE_ENV === 'production' ? 'error' : 'off',
-    'no-console': process.env.NODE_ENV === 'production' ? ["error", { allow: ["warn", "error"] }] : 'off'
+    'no-console': process.env.NODE_ENV === 'production' ? ["error", { allow: ["warn", "error"] }] : 'off',
     'camelcase': ['off', { properties: 'never' }],
     // "vue/max-attributes-per-line": [2, {
     //   "singleline": 1,
diff --git a/.postcssrc.js b/.postcssrc.js
index ea9a5ab..497d129 100644
--- a/.postcssrc.js
+++ b/.postcssrc.js
@@ -2,7 +2,6 @@
 
 module.exports = {
   "plugins": {
-    // to edit target browsers: use "browserlist" field in package.json
     "autoprefixer": {}
   }
 }
diff --git a/LICENSE b/LICENSE
index 54814dc..1e9a786 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2017-present xiemengxiong
+Copyright (c) 2018 xiemengxiong
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/screenshot/demo.PNG b/screenshot/demo.PNG
index 3bef659..736e09a 100644
Binary files a/screenshot/demo.PNG and b/screenshot/demo.PNG differ