video size fix

frontend_refactor/src/containers/TaskList.js

@@ -77,7 +77,7 @@ function renderResult(x, data) {
         if (result.file !== undefined) {
             video_element = (
                 <Card type="inner" title="运动3D还原">
-                    <video controls>
+                    <video controls style={{width: "80%"}}>
                         <source src={result.file}/>
                     </video>
                 </Card>