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              <h2>Animation with CSS Variables</h2>
    <div class="controls">
      <label>X</label>
      <input type="range" id="x" min="0" max="360" value="10">
      <label>Y</label>
      <input type="range" id="y" min="0" max="360" value="10">
      <label>Z</label>
      <input type="range" id="z" min="0" max="360" value="10">

    </div>

    <div class="display">
      <img class="photo" src="http://unsplash.it/800/500?image=1011">
    </div>

    <p class="love">Made by <a href="http://twitter.com/wesbos">@wesbos</a> 🔥</p>

    <p class="love">Chrome 49+, Firefox 31+</p>
            
          
!
            
                 :root {
     --x: 10deg;
     --y: 10deg;
     --z: 10deg;
     --base: #1497AD;
   }
   
   .photo {
     transform: rotateX(var(--x)) rotateY(var(--y)) rotateZ(var(--z));
     transition: all 0.5s;
     border: 20px solid white;
     box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
   }
   /*
        misc styles, nothing to do with CSS variables
      */
   
   body {
     text-align: center;
     background: #ffc600;
     color: white;
     font-family: 'helvetica neue', sans-serif;
     font-weight: 100;
     font-size: 50px;
   }
   
   .display {
     perspective: 800px;
   }
   
   .controls {
     margin-bottom: 50px;
     position: relative;
     z-index: 2;
   }
   
   a {
     color: var(--base);
     text-decoration: none;
   }
            
          
!
            
                    // get the inputs
      const inputs = [].slice.call(document.querySelectorAll('.controls input'));

      // listen for changes
      inputs.forEach(input => input.addEventListener('change', handleUpdate));
      inputs.forEach(input => input.addEventListener('mousemove', handleUpdate));

      function handleUpdate(e) {
        // append 'px' to the end of spacing and blur variables
        const suffix = (this.id === 'base' ? '' : 'px');
        var property = `--${this.id}`;
        // remove the last one so we don't pollute the element with inline styles
        document.documentElement.style.removeProperty(property);
        // update the element. Note: We are doing this on <html>, but varaibles can be scoped to ANY element
        document.documentElement.style.setProperty(property, this.value + 'deg');
      }
            
          
!
999px
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