js代码

<script src="zy.media.min.js"></script>
<script>
//document.documentElement.style.overflow='hidden';
document.body.style.overflow='hidden';
zymedia('video',{autoplay: true});
var screenheight = window.screen.height/2;
$("#modelView").width(window.screen.width);
$("#modelView").height(window.screen.height);
var videoheight = $(".zy_media").height()/2;
var padding_top = screenheight-videoheight;
$(".playvideo").css({"top":padding_top});
$("#modelView").css({"margin-top":-1*(padding_top+$(".zy_media").height())});
</script>