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JavaScript preprocessors can help make authoring JavaScript easier and more convenient. For instance, CoffeeScript can help prevent easy-to-make mistakes and offer a cleaner syntax and Babel can bring ECMAScript 6 features to browsers that only support ECMAScript 5.

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HTML

            
              <div class="boxes withlabel">
  <input type="checkbox" id="rj-1">
  <label for="rj-1">Hello World</label>

  <input type="checkbox" id="rj-2" checked>
  <label for="rj-2">RJ Code for every one </label>

  <input type="checkbox" id="rj-3">
  <label for="rj-3">Checkbox with label</label>
</div>
<div class="boxes without">
  <input type="checkbox" id="box-1">
  <input type="checkbox" id="box-2" checked>

  <input type="checkbox" id="box-3">
</div>
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CSS

            
              @import url(https://fonts.googleapis.com/css?family=Open+Sans);

/*Page styles*/
html { height: 100%; }

body {
  height: 100%;
  margin: 0;
  background: #333;
  display: -webkit-flex;
  display: flex;
  align-items: center;
}

.boxes {
  margin: auto;
  padding: 50px;
  background: #F46A4A;
}





/* With label Checkboxes styles*/
.withlabel input[type="checkbox"] { display: none; }

.withlabel input[type="checkbox"] + label {
  display: block;
  position: relative;
  padding-left: 35px;
  margin-bottom: 20px;
  font: 14px/20px 'Open Sans', Arial, sans-serif;
  color: #fff;
  cursor: pointer;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

.withlabel input[type="checkbox"] + label:last-child { margin-bottom: 0; }

.withlabel input[type="checkbox"] + label:before {
  content: '';
  display: block;
  width: 20px;
  height: 20px;
  border: 2px solid #fff;
  position: absolute;
  left: 0;
  top: 0;
  opacity: .6;
  -webkit-transition: all .12s, border-color .08s;
  transition: all .12s, border-color .08s;
}

.withlabel input[type="checkbox"]:checked + label:before {
  width: 10px;
  top: -5px;
  left: 5px;
  border-radius: 0;
  opacity: 1;
  border-top-color: transparent;
  border-left-color: transparent;
  -webkit-transform: rotate(45deg);
  transform: rotate(45deg);
}


/*Checkboxes styles*/

.without input[type="checkbox"] {
  display: block;
  position: relative;
  margin-bottom: 20px;
  width:0;
  cursor: pointer;
}

.without input[type="checkbox"]:last-child { margin-bottom: 0; }

.without input[type="checkbox"]:before {
  content: '';
  background:#F46A4A;
  display: block;
  width: 20px;
  height: 20px;
  border: 2px solid #fff;
  position: absolute;
  left: 0;
  top: 0;
  -webkit-transition: all .12s, border-color .08s;
  transition: all .12s, border-color .08s;
}

.without input[type="checkbox"]:checked:before {
  width: 10px;
  top: -5px;
  left: 5px;
  border-radius: 0;
  opacity: 1;
  border-top-color: transparent;
  border-left-color: transparent;
  -webkit-transform: rotate(45deg);
  transform: rotate(45deg);
}
!

JS
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