JSFiddle - React, Tailwind, and code Playground

HTML

<ul id="menu-bar">
 <li class="active"><a href="#">Home</a></li>
 <li><a href="#">Products</a></li>
 <li><a href="#">Services</a></li>
 <li><a href="#">About</a></li>
</ul>

CSS

#menu-bar {
  width: 95%;
  margin: 0px 0px 0px 0px;
  padding: 6px 6px 4px 6px;
  height: 40px;
  line-height: 100%;
  background: #FFFFFF;
  border: solid 0px #FFFFFF;
  position: relative;
  z-index: 999;
}

#menu-bar li {
  margin: 0px 0px 8px 0px;
  padding: 0px 20px 0px 4px;
  float: left;
  position: relative;
  list-style: none;
}

#menu-bar a {
  font-weight: normal;
  font-family: arial;
  font-style: normal;
  font-size: 17px;
  color: #000000;
  text-decoration: none;
  display: block;
  padding: 6px 20px 6px 20px;
  margin: 0;
  margin-bottom: 8px;
}
#menu-bar .active a, #menu-bar li:hover > a {
  background: #FFFFFF;
  color: #FA550F;
  -webkit-box-shadow: 0 1px 1px rgba(0, 0, 0, .2);
  -moz-box-shadow: 0 1px 1px rgba(0, 0, 0, .2);
}

#menu-bar:after {
  content: ".";
  display: block;
  clear: both;
  visibility: hidden;
  line-height: 0;
  height: 0;
}
#menu-bar {
  display: inline-block;
}
  html[xmlns] #menu-bar {
  display: block;
}
* html #menu-bar {
  height: 1%;
}