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HTML

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CSS

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JavaScript

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JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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Packages

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HTML 

              
                <h1>Draggabilly - dragStart with vanilla JS</h1>
<div class="draggable"></div>
!

CSS 

              
                body { font-family: sans-serif; }

.draggable {
  width: 140px;
  height: 140px;
  background: #F90;
  border-radius: 10px;
}
.draggable.is-pointer-down {
  background: #09F;
}
.draggable.is-dragging { opacity: 0.7; }
!

JS 

              
                // external js: draggabilly.pkgd.js

var draggie = new Draggabilly('.draggable');
draggie.on( 'dragStart', function() {
  console.log('dragStart');
});
!
999px

Console