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HTML

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

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JavaScript

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Babel includes JSX processing.

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HTML 

              
                <div class="buttons-wrapper">
  <button class="play">Play</button>
  <label for="set-start">Set start time: </label>
  <select name="set-start" id="set-start">
    <option value="0">0</option>
    <option value="1">1 second</option>
    <option value="2">2 seconds</option>
    <option value="3">3 seconds</option>
    <option value="4">4 seconds</option>
  </select>
  <label for="set-tween">Set tween time: </label>
  <select name="set-tween" id="set-tween">
    <option value="0">0.5 seconds</option>
    <option value="1">1 second</option>
    <option value="2">2 seconds</option>
    <option value="3">3 seconds</option>
    <option value="4">4 seconds</option>
  </select>
</div>
<div class="data">
  Tween status: <input type="text" name="tw-status" value="" readonly> Tween duration: <input type="text" name="tw-duration" value="" readonly>
  <label for="twseek">Tween set seek(0) on Play?</label>
  <input id="twseek" name="twseek" type="checkbox" value="1" checked />
</div>
<div class="data">
  Timeline status: <input type="text" name="tl-status" value="" readonly> Timeline duration: <input type="text" name="tl-duration" value="" readonly>
  <label for="tlseek">Timeline set seek(0) on Play?</label>
  <input id="tlseek" name="tlseek" type="checkbox" value="1" checked />
</div>
<div id="stage-container" width="800" height="400" style="width: 800px; height: 400px;">
  
  <div id="stage" width="800" height="400" style="width: 800px; height: 400px;">
    
    <svg id="stage-svg-0" class="stage-svg" x="0" y="0" height="400" width="800">
      
      <g id="gp-0" class="svg-wrapper" ref="0" x="50" y="50" height="170" width="170">

        <svg id="svg-0" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 170 170" class="svg inline" height="170" width="170">
          <path fill="#FFF" d="M85 170c-46.87 0-85-38.13-85-85S38.13 0 85 0s85 38.13 85 85-38.13 85-85 85z"/>
          <path fill="none" stroke="#282D33" stroke-width="4" d="M93.312 108.145h16.16c6.685 0 12.103 4.796 12.103 10.714v13.39M44.242 132.25v-13.392c0-5.918 5.42-10.714 12.105-10.714h16.13M93.078 100.51v8.206l-10.17 10.872-10.17-10.872v-8.205M57.29 48.265c-2.11 3.162-3.614 6.763-4.343 10.633-4.207 2.49-7.025 6.986-7.025 12.135 0 4.558 2.22 8.592 5.64 11.19-.616 1.323-.966 2.76-.966 4.27 0 6.453 6.197 11.685 13.842 11.685.636 0 1.262-.036 1.874-.106M102.96 91.47c1.166.61 2.493.955 3.9.955 4.667 0 8.45-3.783 8.45-8.45 0-1.903-.186-3.308-1.25-4.722 3.64-2.578 5.564-7.092 5.564-11.815 0-6.16-4.027-11.388-9.648-13.355.106-.376-.496-3.37-2.087-6.02"/>
          <path fill="none" stroke="#282D33" stroke-width="4" d="M105.16 66.653c.84-.307 1.744-.475 2.69-.475 4.318 0 7.82 3.502 7.82 7.82s-3.502 7.82-7.82 7.82M57.156 81.818c-4.318 0-7.818-3.5-7.818-7.82s3.5-7.82 7.818-7.82"/>
          <path fill="none" stroke="#282D33" stroke-width="4" d="M106.976 65.69v11.892c0 14.166-11.483 25.65-25.65 25.65-14.164 0-25.648-11.484-25.648-25.65v-11.89M74.617 91.853c5.156 2.08 10.72 1.608 15.283-.818"/>
          <path fill="none" stroke="#282D33" stroke-width="4" d="M72.52 49.55c-2.196 6.24-6.645 11.74-12.937 15.01-1.686.877-2.967 1.484-4.922 2.158M107.176 66.313c-11.058.62-24.47-2.95-29.73-14.33l-1.27-2.75M73.752 72.673h-4.675M92.492 72.673h-4.674M84.75 82.952h-5.033V70.01"/>
          <path fill="none" stroke="#282D33" stroke-width="4" d="M107.48 49.55h-50v-12.5c15.772-7.726 34.23-7.726 50 0v12.5z"/>
          <g fill="none" stroke="#282D33" stroke-width="4">
            <path d="M82.482 35.48v10.433M87.7 40.696H77.265"/>
          </g>
          <g fill="none" stroke="#282D33" stroke-width="4">
            <path d="M78.375 132.3l-7.225-23.54h-3.877l-4.11 7.146 5.507 4.905-4.188 4.35 3.427 7.14M87.35 132.3l7.224-23.54h3.877l4.113 7.146-5.508 4.905 4.187 4.35-3.427 7.14"/>
          </g>
          <rect width="100%" height="100%" fill="rgba(255,255,255,0"/>
        </svg>
      </g>
    </svg>
  </div>
</div>
!

CSS 

              
                html, body
  font-family: sans-serif

.buttons-wrapper
  display: block
  width: 800px
  margin: 0 auto
  button
    cursor: pointer
    &.play
      display: block
      background: blue
      color: white
      border: 0
      padding: 10px 20px
      border-radius: 4px
      font-size: 18px
      margin-bottom: 5px
svg.stage-svg
  position: absolute
  left: 0
  top: 0

.data
  width: 800px
  margin: 5px auto

#stage-container
  position: relative
  width: 800px
  height: 400px
  margin: 0 auto 15px
  background: #000
  border: 4px #6bc28c solid

.buttons
  width: 800px
  position: relative
  display: block
  margin: 10px auto

#stage
  display: block
  width: 800px
  height: 400px
  position: relative
  background: transparent
  position: relative
!

JS 

              
                var tw,
    tl = new TimelineMax(
      {
        paused: true,
        onStart: function(){
          $('input[name=tl-status]').val('started...');
          $('input[name=tl-duration]').val('');
        },
        onComplete: function(){
          $('input[name=tl-status]').val('finished');
          $('input[name=tl-duration]').val(tl.duration());
        }
      }
    );

function addTween() {
  tw = TweenMax.to(
    $('#gp-0'), 
    0.5, 
    {
      x: 300, 
      y: 200, 
      onStart: function(){
        $('input[name=tw-status]').val('started...');
        $('input[name=tw-duration]').val('');
      },
      onComplete: function(){
        $('input[name=tw-status]').val('finished');
        $('input[name=tw-duration]').val(tw.duration());
      }
    });
  tl.add(tw);
  // tl.add(tw).repeat(-1);
}

function resetFields() {
  $('input').val('');
}

function changeStartTime(val) {
  tw.startTime(val);
  tl.pause();
}

function changeTweenDuration(val) {
  tw.duration(val);
}

$('.play').on("click", function(){
  resetFields();
  if($('input[name=twseek]').is(':checked')) {
    tw.seek(0);
  }
  if($('input[name=tlseek]').is(':checked')) {
    tl.seek(0);
  }
  tl.play();
  console.log(tw.vars);
});

$('#set-tween').on("change", function(){
  changeTweenDuration(parseFloat($(this).val()));
});

$('#set-start').on("change", function(){
  changeStartTime(parseFloat($(this).val()));
});

addTween();
!
999px

Console