style:预览考试头部标题样式调整

src/modules/teach-tool/examination-manager/PreviewModal.tsx

@@ -33,7 +33,7 @@ function PreviewModal(props: any) {
                 <div className="phone">
                     <div className="content">
                         <div className="topContent">
-                            <div className="title" style={{ fontSize: props.info.examName.length > 24 ? 13 : 22 ,marginTop:props.info.examName.length > 24?44:20}}>{props.info.examName || ' '}</div>
+                            <div className="title" style={{ fontSize: props.info.examName.length > 24 ? 13 : 22 ,marginTop: 20}}>{props.info.examName || ' '}</div>
                             {
                                 props.info.examStartTime && <div className="time">{moment(props.info.examStartTime).format("YYYY-MM-DD HH:mm")}~{moment(props.info.examEndTime).format("YYYY-MM-DD HH:mm")}</div>
                             }