style:新建线下课居中

src/modules/course-manage/offline-course/AddOfflineCourse.jsx

 /*
  * @Author: 吴文洁
  * @Date: 2020-08-05 10:07:47
- * @LastEditors: zhangleyuan
- * @LastEditTime: 2021-03-29 14:08:47
+ * @LastEditors: wufan
+ * @LastEditTime: 2021-05-25 15:25:33
  * @Description: 线下课新增/编辑页
  * @Copyright: 杭州杰竞科技有限公司 版权所有
  */
@@ -823,7 +823,7 @@ class AddOfflineCourse extends React.Component {
                 </div>
               </div>
               <div className="course-catalog">
-                <span className="label"><span className="require">*</span>课程分类：</span>
+                <span className="label special"><span className="require">*</span>课程分类：</span>
                 <TreeSelect
                   showSearch
                   treeNodeFilterProp="title"
@@ -840,7 +840,7 @@ class AddOfflineCourse extends React.Component {
                 />
               </div>
               <div className="course-catalog">
-                <span className="label"><span className="require">*</span>上课地点：</span>
+                <span className="label special"><span className="require">*</span>上课地点：</span>
                 <Input
                   value={offlinePlace}
                   maxLength={40}
@@ -852,7 +852,7 @@ class AddOfflineCourse extends React.Component {
                 />
               </div>
               <div className="course-catalog" id="teacher">
-                <span className="label"><span className="require">* </span>讲师：</span>
+                <span className="label special"><span className="require">* </span>讲师：</span>
                 <Select
                   placeholder="请选择讲师"
                   value={teacherName}

src/modules/course-manage/offline-course/AddOfflineCourse.less

@@ -43,6 +43,9 @@
       text-align: right;
       width: 120px;
       flex-shrink: 0;
+      &.special {
+        line-height: 32px;
+      }
     }
     .required {
       position: relative;

src/modules/course-manage/offline-course/modal/PreviewOfflineModal.less

@@ -20,7 +20,7 @@
       .cover {
         position: absolute;
         width: 100%;
-        height: 100%;
+        height: 48px;
         left: 0;
         top: 0;
         background-color: rgba(0, 0, 0, 0.05);