我想在视频达到30秒时显示隐藏的div标签。我正在使用video.js而不是简单的video标记。有人能帮助我吗？
<video id="video1" class=" video-js vjs-default-skin" controls preload="none" width="498" height="280" poster="img/Home.jpg" data-setup="{}" onended="showfadeIn()" onplay="hidefadeIn()">
<source src="video/sportv5b_1_2.mp4" type="video/mp4">
<source src="video/sportv5b_1_2.ogv" type="video/ogv">
<source src="video/sportv5b_1_2.webm" type="video/webm">
<p>Your user agent does not support the HTML5 Video element.</p>
</video>