JSFiddle - React, Tailwind, and code Playground

HTML

<!-----Row 1--------->
<div class="row row1">
  <div class="row1-2">Simple Text</div>
  <div class="row1-2 ToggleClass"> <a href="#">Action</a>
    <div class="ActionDropDown">
      I am a Drop Down !
    </div>
  </div>
</div>
<!-----Row 1--------->
<!-----Row 2--------->
<div class="row row1">
  <div class="row1-2">Simple Text</div>
  <div class="row1-2 ToggleClass"> <a href="#">Action</a>
    <div class="ActionDropDown">
      I am a Drop Down !
    </div>
  </div>
</div>
<!-----Row 2--------->
<!-----Row 3--------->
<div class="row row1">
  <div class="row1-2">Simple Text</div>
  <div class="row1-2 ToggleClass"> <a href="#">Action</a>
    <div class="ActionDropDown">
      I am a Drop Down !
    </div>
  </div>
</div>
<!-----Row 3--------->

<div class="InfoDiv">
 <b>Info:</b> Right now click on Action on each row open drop down multiple times. What I want is when one drop down is open on click of action , the other drop down if open should get close.
</div>

CSS

* {
  margin: 0px;
  padding: 0px;
  float: left;
  box-sizing: border-box;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  font-family: arial;
}

a {
  text-decoration: none;
}

body,
html {
  width: 100%;
  height: 100%;
  background: #cbeeff
}

.row1 {
  width: 100%;
  background: #fff;
  margin: 5px 0;
}

.row1-2 {
  width: 50%;
  position: relative;
  text-align: center;
  padding: 10px 0;
  border-right: 2px solid #000
}

.row1-2+.row1-2 {
  border-right: 0px;
}

.row1-2 a {
  color: #ff4886;
  float: none;
}

.ActionDropDown {
  position: absolute;
  background: #7bd4ff;
  border: 2px solid #000;
  top: 20px;
  padding: 30px 10px;
  display: none;
  z-index: 9;
  right: 0px;
  left: 0px;
  max-width: 180px;
  margin: 0px auto;
}
.InfoDiv{ width:100%; padding:10px; background:#ffadc9;}

JavaScript

$('.ToggleClass a').click(function(ev) {
var dropDown = $(this).next('.ActionDropDown')
  if ($(dropDown).is(":visible")) {
	  $(dropDown).fadeOut(500)
	} else {
	 $(dropDown).fadeIn(500)
	}

	$(this).parents(".row").siblings(".row").find(".ActionDropDown:visible").fadeOut(500)


});
$(document).mouseup(function (e)
{

    if (!$(".ActionDropDown").is(e.target) ) // if the target of the click is not the dropDown
   {
        $(".ActionDropDown").fadeOut(500);
    }
});