JSFiddle - React, Tailwind, and code Playground

HTML

<footer class="footer">
  <!-- <div class="container-fluid"> -->
  <nav>
    <li><a href="https://www.facebook.com/lucas.stahl.75">
        <i class="fa fa-facebook"></i>
    </a></li>
    <li><a href="https://twitter.com/LucasStahl11">
        <i class="fa fa-twitter"></i>
    </a></li>

    <li><a href="https://www.linkedin.com/in/lucasstahl">
        <i class="fa fa-linkedin"></i>
        </a></li>
    <li><a href="https://lucasstahl.wordpress.com/">
        <i class="fa fa-wordpress"></i>
        </a></li>

    <li id="copyRight">@Copyright 2018 www.lucasstahl.com</li>
  </nav>
  <!-- </div> -->
</footer>

CSS

.footer {
  position: absolute;
  bottom: 0;
  width: 100%;
  height: 60px;
  line-height: 60px;
  background-color: yellow;
}

nav {
  display: flex
}