js实现浏览器全屏

控制全屏的样式

html:-moz-full-screen {  
    background: red;  
}  
html:-webkit-full-screen {  
    background: red;  
}  
html:fullscreen {  
    background: red;  
}

全屏属性及方法

具体可以参考：https://github.com/tt-ghost/fullscreen.js/blob/master/fullscreen.js