js 社会主义点击事件

index.js

效果演示地址： https://www.purecss.cn/

(function() {
    var coreSocialistValues = ["富强", "民主", "文明", "和谐", "自由", "平等", "公正", "法治", "爱国", "敬业", "诚信", "友善"]
      , index = Math.floor(Math.random() * coreSocialistValues.length);
    document.body.addEventListener('click', function(e) {
        if (e.target.tagName == 'A') {
            return;
        }
        var x = e.pageX
          , y = e.pageY
          , span = document.createElement('span');
        span.textContent = coreSocialistValues[index];
        index = (index + 1) % coreSocialistValues.length;
        span.style.cssText = ['z-index: 9999999; position: absolute; font-weight: bold; color: #ff6651; top: ', y - 20, 'px; left: ', x, 'px;'].join('');
        document.body.appendChild(span);
        animate(span);
    });
    function animate(el) {
        var i = 0
          , top = parseInt(el.style.top)
          , id = setInterval(frame, 16.7);
        function frame() {
            if (i > 180) {
                clearInterval(id);
                el.parentNode.removeChild(el);
            } else {
                i += 2;
                el.style.top = top - i + 'px';
                el.style.opacity = (180 - i) / 180;
            }
        }
    }
}());