CSS3 帧动画,insertRule

css animation 语法：animation: name duration timing-function delay iteration-count direction fill-mode play-state;
参数：

场景：点击下面pagination弹出上方大圆球，要求动画起始点为点击的pagination的位置。

解析：动画实现很简单，大概这样：

@-webkit-keyframes fadeInContent4 {
    from {
        opacity: 0.3;
        -webkit-transform: translate3d(665px, 8px, 0) scale3d(0.254, 0.114, 1);
        transform: translate3d(665px, 8px, 0) scale3d(0.254, 0.114, 1);
    }
    to {
        opacity: 1;
        -webkit-transform: translate3d(0, 0, 0) scale3d(1, 1, 1);
        transform: translate3d(0, 0, 0) scale3d(1, 1, 1);
    }
}
@keyframes fadeInContent4 {
    from {
        opacity: 0.3;
        -webkit-transform: translate3d(665px, 8px, 0) scale3d(0.254, 0.114, 1);
        transform: translate3d(665px, 8px, 0) scale3d(0.254, 0.114, 1);
    }
    to {
        opacity: 1;
        -webkit-transform: translate3d(0, 0, 0) scale3d(1, 1, 1);
        transform: translate3d(0, 0, 0) scale3d(1, 1, 1);
    }
}
.fadeInContent4 {
    -webkit-animation-name: fadeInContent4;
    animation-name: fadeInContent4;
    -webkit-animation-duration: 0.6s;
    animation-duration: 0.6s;
}

执行动画：$(".content-animation").addClass("fadeInContent4");

但是：

这里有4个pagination(动态的话就是n个),意味着上面css的代码要copy 4份，然后去修改translate参数,所以推荐使用js循环insertRule去插入动画样式。

 function insertAnimationStyle() {
            let styleEl = document.createElement('style');
            document.head.appendChild(styleEl);
            $(".tab-menu li").each(function (index, element) {
                // element == this
                var tabtopLoaction = -232 + 60 * (index);
                var tabItemAnimation3 = " \
                .fadeInContent" + index +" {\
                -webkit-animation-name: fadeInContent" + index +";\
                animation-name: fadeInContent" + index +";\
                -webkit-animation-duration: 0.3s;\
                animation-duration: 0.3s;\
                }\
                ";
                styleEl.sheet.insertRule(tabItemAnimation3, 0);

                var tabItemAnimation2 = " \
                @keyframes fadeInContent" + index +" {\
                from {\
                    opacity:  0.3;\
                    -webkit-transform:translate3d(665px, " +tabtopLoaction +"px, 0)  scale3d(0.254,0.114, 1);\
                    transform: translate3d(665px, " +tabtopLoaction + "px, 0)  scale3d(0.254,0.114, 1);\
                }\
                to {\
                    opacity: 1;\
                    -webkit-transform:translate3d(0, 0, 0) scale3d(1,1,1);\
                    transform:translate3d(0, 0, 0) scale3d(1,1,1);\
                }\
                }";
                styleEl.sheet.insertRule(tabItemAnimation2, 0);

                var tabItemAnimation1 = " \
                @-webkit-keyframes fadeInContent" + index +" {\
                from {\
                    opacity: 0.3;\
                    -webkit-transform: translate3d(665px, " + tabtopLoaction +"px, 0)  scale3d(0.254,0.114, 1);\
                    transform: translate3d(665px, " +tabtopLoaction +"px, 0)  scale3d(0.254,0.114, 1);\
                }\
                to {\
                    opacity: 1;\
                    -webkit-transform: translate3d(0, 0, 0) scale3d(1,1,1);\
                    transform: translate3d(0, 0, 0) scale3d(1,1,1);\
                }\
                }";
                styleEl.sheet.insertRule(tabItemAnimation1, 0);
            });
        };

执行动画：

$tabMenu.on('click', function () {
    var clickIndex = $(this).index();
    $(".content-wapper").addClass("fadeInContent" + clickIndex);

    var fankanv = "fadeInContent" + clickIndex;
    $(".content-animation").css('animation', '' + fankanv + ' 0.6s ease 0s 1 normal none running');
});

Debug:

这里一定要注意每次insertRule的参数只能有一条cssStyle

错误日志：

火狐报错firefox: SyntaxError: An invalid or illegal string was specified
谷歌报错google: Uncaught DOMException: Failed to execute 'insertRule' on 'CSSStyleSheet': Failed to parse the rule 

mozilla文档解释insertRule错误（如果你遇到上面的问题请点这里）
说的非常清楚，一次只能插入一条。

over,这篇主要记录一下前端debug的过程，百度是不可能百度了，只有stackoverflow这样子

补充：

这里安利一下：animation.css,animation.css已经帮我们实现了很多常用的加载动画，真的很方便,star竟然比webpak还高
添加动画：
$(element).addClass("animated fadeInUpBig");
动画完成监听：

$('#element').one('webkitAnimationEnd mozAnimationEnd MSAnimationEnd oanimationend animationend', function () {
       //todo
        $(".tab-menu li").each(function (index, element) {
                // element == this
                var listarttime = index * 100;
                setTimeout(function () {  //循环添加动画
                    $(element).show();
                    $(element).addClass("animated fadeInUpBig");//这里注意this作用域
                }, listarttime);
         });
});