Merge branch 'feature/pangguoming/20210701/active_students_number' into rc

src/modules/home/Home.less

@@ -42,7 +42,7 @@
         width: ~'calc(16.67% - 8px)';
         padding: 16px;
         &.course-data {
-          width: ~'calc(33% - 24px)';
+          width: 33%;
         }
         .header {
           display: flex;
@@ -86,7 +86,7 @@
           border-radius: 4px;
           background: #fafafa;
           height: 124px;
-          width: 55%;
+          width: 60%;
           position: absolute;
           right: 16px;
           top: 28px;