JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.jquery.com/jquery-1.12.3.min.js"></script>
<div class="container">
  <div class="social">
    1 2 3 4
  </div>
  <div class="list">
    <span class="span"><a href="#">Link</a></span>
    <span class="span"><a href="#">Link</a></span>
    <span id="trigger" class="span"><a href="#">Mouseenter</a></span>
  </div>
</div>

CSS

.social {
  width: 100%;
  position: absolute;
  display: none;
  background: red;
  color: #fff;
  text-align: center;
}

.container {
  max-width: 300px;
  position: relative
}

.span {
  display: inline-block;
  vertical-align: top
}

JavaScript

$("#trigger").on({
  mouseenter: function() {
    $(".list").css("opacity", "0");
    $(".social").show();
  },
  mouseleave: function() {
    $(".list").css("opacity", "1");
    $(".social").hide();
  }
});