diff --git a/public/react/src/modules/courses/busyWork/CommonWorkDetailIndex.js b/public/react/src/modules/courses/busyWork/CommonWorkDetailIndex.js
index a690fedc0..2d3361492 100644
--- a/public/react/src/modules/courses/busyWork/CommonWorkDetailIndex.js
+++ b/public/react/src/modules/courses/busyWork/CommonWorkDetailIndex.js
@@ -305,9 +305,6 @@ class CommonWorkDetailIndex extends Component{
                         .floatSpinParent .ant-spin-nested-loading {
                           float: right;
                         }
-                        .floatSpinParent .ant-spin-nested-loading .ant-spin-spinning{
-                          top: 10px;
-                        }
                         `}</style>
                         {this.props.isAdmin()? <Spin spinning={this.state.donwloading} style={{  }}>
                         <li className="li_line drop_down fr color-blue font-16 mr8 mt20" style={{"padding":"0 20px"}}>