Match Element heights within a container element

gistfile1.txt

 // Function to make heights of elements
  $.fn.equalHeights = function(px) {
    $(this).each(function(){
      var currentTallest = 0;
      $(this).children().each(function(i){
        var el = $(this).find('.element-you-want-to-check-height-on'),
            h = el.outerHeight();

        if (h > currentTallest) { currentTallest = h; }
      });
      if (!px && Number.prototype.pxToEm) currentTallest = currentTallest.pxToEm(); //use ems unless px is specified
      $(this).children().find(el).css({'min-height': currentTallest});
    });
    return this;
  };
  
  
  
  // Usage
  <div class="parent">
    <div class="child"></div>
    <div class="child"></div>
    <div class="child"></div>
  </div>
  
  
  $('.parent').equalHeights(); // each .child element will be the same height