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HTML

              
                <div class="holder">
  <div class="new-year">
    
  </div>
</div>
              
            
!

CSS

              
                @import url('https://fonts.googleapis.com/css?family=Major+Mono+Display');
.holder {
  position: absolute;
  background-color: #ffffff;
  left: 0%;
  top: 0%;
  width: 100%;
  height: 100%;
}
.new-year {
  font-family: 'Major Mono Display', monospace;
  color: #333333;
  font-size: 20px;
  position: absolute;
  left: 50%;
  top: 50%;
  width: 100%;
  transform: translateX(-50%) translateY(-50%);
  text-align: center;
}
.year {
  position: relative;
  left: 50%;
  display: table;
  font-size: 6em;
  transform: translateX(-50%);
}
.year2 {
  transform: translateX(-50%) rotateX(180deg);
  opacity: 0.2;
}
.digit {
  display: inline-block;
  margin: 0px;
  padding: 0px;
  position: relative;
  opacity: 0;
}
.controls {
  margin-top: 30px;
}
.control {
  display: inline-block;
  padding-left: 20px;
  padding-right: 20px;
  font-size: 0.8em;
  border-left: 1px solid #333333;
  opacity: 0;
  position: relative;
  top: 100px;
}
.control:first-child {
  border-left: none;
}
.triangles {
  position: absolute;
  left: 0%;
  top: 0%;
  width: 100%;
  height: 100%;
  opacity: 0;
}
.triangle {
  width: 0; 
  height: 0; 
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-bottom: 5px solid #333333;
  position: absolute;
  opacity: 0;
}
              
            
!

JS

              
                /* Timelines could have been written in a better way, I am sorry if I wrote them in a hurry. :D */
(function() {
  var animation = {
    newYear: document.querySelector(".new-year"),
    range: function(min,max) {
      return Math.floor(Math.random() * (max - min + 1) + min);
    },
    get period() {
      var dateFuture = new Date(new Date().getFullYear() + 1, 0, 1);
      var dateNow = new Date();
      var seconds = Math.floor((dateFuture - (dateNow))/1000);
      var minutes = Math.floor(seconds/60);
      var hours = Math.floor(minutes/60);
      var days = Math.floor(hours/24);
      hours = hours-(days*24);
      minutes = minutes-(days*24*60)-(hours*60);
      seconds = seconds-(days*24*60*60)-(hours*60*60)-(minutes*60);
      return {
        year: new Date().getFullYear() + 1,
        days: days,
        hours: hours,
        minutes: minutes,
        seconds: seconds
      }
    },
    element: function(parent, type, className, html) {
      var element = document.createElement(type);
      element.className = className;
      if (typeof html !== "undefined") element.innerHTML = html;
      parent.appendChild(element);
      return element;
    },
    year: function(className) {
      var timeline = new TimelineMax();
      var year = animation.element(animation.newYear, "div", className);
      for (var i=0; i<=String(animation.period.year).length-1; i++) {
        var digit = animation.element(year, "div", "digit", String(animation.period.year).substr(i, 1));
        digit.style.top = (0 - (digit.clientHeight * 2)) + "px";
        timeline
          .to(digit, 0.5, {top: 0, opacity: 1, ease: Bounce.easeOut});
      }
      return year;
    },
    animate: function() {
      var year1 = animation.year("year year1");
      var year2 = animation.year("year year2");
      var controls = animation.element(animation.newYear, "div", "controls");
      var days = animation.element(controls, "div", "control days");
      var hours = animation.element(controls, "div", "control hours");
      var minutes = animation.element(controls, "div", "control minutes");
      var seconds = animation.element(controls, "div", "control seconds");
      animation.controls = {
        controls: controls,
        days: days,
        hours: hours,
        minutes: minutes,
        seconds: seconds
      };
      animation.render();
      var triangles = animation.element(year1, "div", "triangles");
      var fullTimeline = new TimelineMax();
      var triangleStorage = [];
      for (var i=0; i<=50-1; i++) {
        var timeline = new TimelineMax({repeat: -1});
        var triangle = animation.element(triangles, "div", "triangle");
        triangle.style.top = -50 + "px";
        var time = animation.range(0, 100) / 100;
        var duration = 1;
        var direction = animation.range(1, 2) == 1 ? -1 : 1;
        timeline
          .set(triangle, {scale: animation.range(10, 20) / 10}, time)
          .to(triangle, duration * 0.5, {opacity: 1}, time)
          .to(triangle, duration, {top: "200%", rotationZ: animation.range(180, 360) * direction, rotationX: animation.range(180, 360) * direction}, time)
          .to(triangle, duration * 0.5, {opacity: 0}, time + (duration * 0.5));
        fullTimeline.add(timeline, 0);
        triangleStorage.push(triangle);
      }
      var previousWidth = 0;
      var checkWidth = function() {
        if (Math.abs(previousWidth - year1.clientWidth) > 1) {
          for (var i=0; i<=triangleStorage.length-1; i++) {
            triangleStorage[i].style.left = (-5 + animation.range(0, year1.clientWidth)) + "px";
          }
          previousWidth = year1.clientWidth;
        }
        setTimeout(checkWidth, 100);
      }
      checkWidth();
      return new TimelineMax()
        .to(days, 0.5, {top: 0, opacity: 1}, 0)
        .to(hours, 0.5, {top: 0, opacity: 1}, 0.25)
        .to(minutes, 0.5, {top: 0, opacity: 1}, 0.5)
        .to(seconds, 0.5, {top: 0, opacity: 1}, 0.75)
        .set(triangles, {opacity: 1}, 3)
        .add(fullTimeline, 3);
    },
    plural: function(property) {
      var period = animation.period;
      if (String(period[property]).length <= 1) period[property] = "0" + period[property];
      return Number(period[property]) > 1 ? period[property] + " " + property : period[property] + " " + property.substr(0, property.length-1);
    },
    render: function() {
      animation.controls.seconds.innerHTML = animation.plural("seconds");
      animation.controls.minutes.innerHTML = animation.plural("minutes");
      animation.controls.hours.innerHTML = animation.plural("hours");
      animation.controls.days.innerHTML = animation.plural("days");
      requestAnimationFrame(animation.render);
    }
  };
  animation.animate();
})();
              
            
!
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