<video width="658" height="444" poster="http://www.youname.com/images/first.png" autoplay="autoplay" preload="none" loop="loop" controls="controls"><source src="http://www.youname.com/images/first.ogv" /><source src="http://www.youname.com/images/first.ogg" /></video>原文：http://www.cnblogs.com/haohaosky/p/7477775.html