<div className="courseForm">

public/react/src/modules/user/usersInfo/video/VideoUpload.js

@@ -37,7 +37,7 @@ function VideoUpload (props) {
                 </div>
             </div>
             
-            <div>
+            <div className="courseForm">
                 <span className="titleLabel">标题：</span>
                 <Input placeholder={`标题支持最多${MAX_LENGTH}个字符`} onInput={titleChange} maxLength={MAX_LENGTH} suffix={
                         <span className="color-grey-6 font-13">{String(title.length)}/{MAX_LENGTH}</span>