JSFiddle - React, Tailwind, and code Playground

HTML

<section class="mainMid">
<nav class="navLeft">
    <ul>
      <li class="about">ABOUT
      <ul>
          <li class="navBeginning">BEGINNING</li>
          <li class="navMnv">Mission<br>
                  <br>
                  Vision</li>
          <li class="navPeople">People</li>
      </ul>
        </li>      
      <li class="projects">PROJECTS</li>
      <li class="getinvolved">GET<br>
          INVOLVED</li>
      <li class="records">RECORDS</li>
      <li class="donate">DONATE</li>
    </ul>
      
      
  </nav>

</section>

CSS

.navLeft {
	width: 25%;
	margin-top: 0%;
	top: auto;
	display: inline;
	list-style-type: none;
	margin-left: 5%;
	position: relative;
	z-index: 0;
	/* [disabled]clear: none; */
}

.navLeft ul li {
	list-style-type: none;
	width: 6em;
	height: 2em;
	/* [disabled]list-style-position: inside; */
	color: #F14E23;
	text-align: center;
	background-color: #FFFFFF;
	border: 0.5em solid #000000;
	margin-bottom: -0.5em;
	font-family: alfa-slab-one;
	font-style: normal;
	font-weight: 400;
	padding-top: 2em;
	top: auto;
	vertical-align: middle;
	padding-bottom: 2em;
	-webkit-transition: all 0.1s linear 0s;
	-o-transition: all 0.1s linear 0s;
	transition: all 0.1s linear 0s;
	position: relative;
	margin-left: -0.5em;
}

.navLeft ul li:hover {
	background-color: #F14E23;
	color: #FFFFFF;
	list-style-type: none;
	position: relative;
}
.navLeft ul .about {
	float: left;
	-webkit-transition: all .1s linear 0s;
	-o-transition: all .1s linear 0s;
	transition: all .1s linear 0s;
}
.navLeft ul ul li
 {
	float: left;
}
.navLeft ul .projects {
	clear: left;
}

.navLeft ul ul {
	display: none;
}

.navLeft ul .about:hover  ul{
	display: block;
}