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                <div id="wrapper">
  <div class="div has-content">We will give our empty div a red background, while the non-empty div has a green background.</div>
  <div class="div"></div>


                // Styling for CodePen Example
* {
  box-sizing: border-box;
.div {
  width: 300px;
  height: 80px;
  margin: 20px auto;
  text-align: center;
  line-height: 1.5;
  font-weight: bold;
  color: #fff;
  &.has-content {
    background: green;
    padding-top: 5px;
  &.no-content {
    background: red;


                $.expr[":"].nocontent = function(obj, index, meta, stack) {
  // obj - is a current DOM element
  // index - the current loop index in stack
  // meta - meta data about your selector
  // stack - stack of all elements to loop

  // Return true to include current element
  // Return false to explude current element
  return !$.trim($(obj).text()).length && !$(obj).children().length;

// Credit:

// Give emtpy div a red background