Merge branch 'feature/yuananting/20210705/select-course-limit' into rc

src/modules/root/Header.less

@@ -327,6 +327,7 @@
         }
         }
         .right-bg-img {
         .right-bg-img {
           position: absolute;
           position: absolute;
+          right: 347px;
           img {
           img {
             width: 277px;
             width: 277px;
             height: 60px;
             height: 60px;