h5全屏

$('#full').on('click', function(e) {

var element = document.documentElement;

if (!$('body').hasClass("full-screen")) {

$('body').addClass("full-screen");

$('#alarm-fullscreen-toggler').addClass("active");

if (element.requestFullscreen) {

element.requestFullscreen();

} else if (element.mozRequestFullScreen) {

element.mozRequestFullScreen();

} else if (element.webkitRequestFullscreen) {

element.webkitRequestFullscreen();

} else if (element.msRequestFullscreen) {

element.msRequestFullscreen();

}

} else {

$('body').removeClass("full-screen");

$('#alarm-fullscreen-toggler').removeClass("active");

if (document.exitFullscreen) {

document.exitFullscreen();

} else if (document.mozCancelFullScreen) {

document.mozCancelFullScreen();

} else if (document.webkitCancelFullScreen) {

document.webkitCancelFullScreen();

} else if (document.msExitFullscreen) {

document.msExitFullscreen();

}

}

});