头部图片替换以及动态切换

src/components/blessingPreheat/banner/index.js

@@ -97,10 +97,10 @@ class Banner extends Component {
 
 
   render() {
-    const { toSection, navs, index } = this.props;
+    const { toSection, navs, index, isFormal } = this.props;
     return (
       <div id={'main-banner'}>
-        <div className="banner"></div>
+        <div className={`banner ${isFormal ? 'formal_banner' : ''}`}></div>
         <nav id={'main-nav'}>
           <ul>
             {

src/components/blessingPreheat/banner/index.scss

@@ -6,6 +6,10 @@
         background: url("https://julyedu-cdn.oss-cn-beijing.aliyuncs.com/active19_1111/m/banner.png") no-repeat;
         background-size: contain;
     }
+    .formal_banner {
+        background: url("https://julyedu-cdn.oss-cn-beijing.aliyuncs.com/active19_1111/m/formal_banner.png") no-repeat;
+        background-size: contain;
+    }
     #main-nav{
         position: absolute;
         top: 183px;

src/components/blessingPreheat/index.js

@@ -88,6 +88,7 @@ class BlessingPreheat extends Component {
   }
 
   componentDidMount() {
+    document.title = '11.11-11.13 AI充电节，预热来袭！积福气享1折秒课，海量奖品来就送-七月在线';
     this.fetchUserBlessing()
     this.setInitialNavActiveStatus()
     window.addEventListener('scroll', throttle(this.calcNavActive, 100))