代码如下

<p>111</p><p><video style=\"max-width:100%;\" src=\"http://mpvideo.qpic.cn/0bc374afcaaa6aapy5tfe5svb76dkh7qauia.f0.mp4?dis_k=49b70bbf4aa1158ad77e030ec9380489&dis_t=1701162257&play_scene=10000&auth_info=ac//28VxCpTCqJF3&auth_key=aa1b65a32c098a72b7843b2a67465276&save=1\" poster=\"http://mpvideo.qpic.cn/0bc374afcaaa6aapy5tfe5svb76dkh7qauia.f0.mp4?dis_k=49b70bbf4aa1158ad77e030ec9380489&dis_t=1701162257&play_scene=10000&auth_info=ac//28VxCpTCqJF3&auth_key=aa1b65a32c098a72b7843b2a67465276&save=1?x-oss-process=video%2Fsnapshot,t_1,m_fast\" controls=\"\"></video><br/></p><p style=\"margin-top: 0px; margin-bottom: 0px; font-size: 17px; text-align: justify; text-wrap: wrap; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; letter-spacing: 0.544px; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, Arial, sans-serif; box-sizing: border-box !important; overflow-wrap: break-word !important;\"><br/></p><hr/><p><br/></p><section style=\"font-size: 17px; text-align: justify; text-wrap: wrap; margin: 0px 8px; padding: 0px; outline: 0px; max-width: 100%; letter-spacing: 0.544px; color: rgb(34, 34, 34); clear: both; min-height: 1em; line-height: normal; font-family: system-ui, -apple-system, BlinkMacSystemFont, Arial, sans-serif; box-sizing: border-box !important; overflow-wrap: break-word !important;\"><span style=\"margin: 0px; padding: 0px; outline: 0px; max-width: 100%; letter-spacing: 1px; text-align: left; widows: 1; color: rgb(136, 136, 136); font-size: 12px; font-family: -apple-system, BlinkMacSystemFont, Arial, sans-serif; box-sizing: border-box !important; overflow-wrap: break-word !important;\">本平台内容涉及的医学知识仅供参考，医疗技术、案例等仅供参考交流，并非医疗诊断和治疗依据；诊疗方法疾病用药等因人而异，具体情况请资询专业医生。</span><span style=\"margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(136, 136, 136); font-size: 12px; letter-spacing: 1px; text-align: left; widows: 1; font-family: -apple-system, BlinkMacSystemFont, Arial, sans-serif; box-sizing: border-box !important; overflow-wrap: break-word !important;\">如果图片表述、文字表述等因素使读者产生误导、歧义联想的，请联系我们。</span></section><p><br/></p><p><span style=\"margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(136, 136, 136); font-size: 12px; letter-spacing: 1px; text-align: left; widows: 1; font-family: -apple-system, BlinkMacSystemFont, Arial, sans-serif; box-sizing: border-box !important; overflow-wrap: break-word !important;\"><br/></span></p><p><img style=\"max-width:100%;\" src=\"http://mmbiz.qpic.cn/mmbiz_png/teFYx0exH5slJppZKf60N36gx2I6n2micHHrBZ36hKOsbA5icTJ0Gpib6WicTia6ibTgb6UfyGE7Hawn8lA0riaPQ3MvA/0\"/></p><p><img src=\"http://mmbiz.qpic.cn/mmbiz_jpg/teFYx0exH5slJppZKf60N36gx2I6n2micrdxb55ib1lanNL9DNJeuCdbQSUgOmMrmo2Lene1SgNM8ZUquibw5al6A/0\"/></p>

预览到自己手机上看不到video标签

这是什么原因