clearfix mt30 mb30

public/react/src/modules/courses/boards/BoardsNew.js

@@ -280,7 +280,7 @@ class BoardsNew extends Component{
               { name: this.isEdit ? '帖子编辑' : '帖子新建'}
             ]}></CBreadcrumb>
 
-            <p className="clearfix mt30 mb30">
+            <p className="clearfix mt20 mb20">
               <span className="fl font-24 color-grey-3">{this.isEdit ? "编辑" : "新建"}帖子</span>
               <a href="javascript:void(0)" className="color-grey-6 fr font-16 mr2" 
                   onClick={() => this.props.history.goBack()}>

public/react/src/modules/courses/busyWork/NewWork.js

@@ -373,7 +373,7 @@ class NewWork extends Component{
             { name: `${ this.isEdit ? '编辑' : '新建'}` }
           ]}></CBreadcrumb>
           
-          <p className="clearfix mt30 mb30">
+          <p className="clearfix mt20 mb20">
             <span className="fl font-24 color-grey-3">{this.isEdit ?"编辑":"新建"}{ moduleName }</span>
             {/* history.goBack() 
                 this.props.toListPage(this.props.match.params, category.category_id)}

public/react/src/modules/courses/exercise/ExerciseNew.js

@@ -405,7 +405,7 @@ class ExerciceNew extends Component{
               { name: this.isEdit ? '编辑试卷' : '新建试卷'}
             ]}></CBreadcrumb>
 
-            <p className="clearfix mt30 mb30">
+            <p className="clearfix mt20 mb20">
               <span className="fl font-24 color-grey-3">{this.isEdit ? "编辑" : "新建"}试卷</span>
               <a href="javascript:void(0)" className="color-grey-6 fr font-16 mr2" 
                   onClick={() => this.props.history.length == 1 ? this.props.history.push(`/courses/${courseId}/exercises/${left_banner_id}`): this.props.history.goBack()}>