JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css">
<div class="container">
  <div class="row">
    <div class="col-2"></div>
    <div class="col-10 position-static">
      <div class="dropdown position-static">
        <button type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown">Dropdown</button>
        <div class="dropdown-menu ml-1">
          <a class="dropdown-item" href="#">Link 1</a>
          <a class="dropdown-item" href="#">Link 2</a>
          <a class="dropdown-item" href="#">Link 3</a>
        </div>
      </div>
    </div>
    <div class="col-2"></div>
  </div>
</div>

CSS

@media (max-width: 767px) {
  .dropdown-menu {
    width: 100%;
  } 
}