JSFiddle - React, Tailwind, and code Playground

HTML

<nav>
    	  
    	  <div class="hello"></div>
    			<ul>
    			  <li class="icon-home"><a href="Premiership.html"><span>Home</span></a></li>
    			
                <li class="arrow"> <a  class="star" href="#">England</a>
                    <ul>
                        <li><a href="Premiership.html">Premiership</a>
                        </li>
                        <li><a href= "Unavailble.html">Championship</a>
                        </li>
                        <li><a href="Unavailble.html">League 1</a>
                        </li>
                        <li><a href="Unavailble.html">League 2</a>
                        </li>
                    </ul>
                </li>
                <li class="arrow"> <a href="#">France</a>
                    <ul >
                        <li id="r"><a href="Unavailble.html">Ligue 1</a> 
                        </li>
                    </ul>
                </li>
                <li class="arrow"> <a href="#">Germany </a>
    
                    <ul>
                        <li><a href="Unavailble.html">Bundesliga</a>
                        </li>
                    </ul>
                </li>
                <li class="arrow"> <a href="#">Italy</a>
    
                    <ul>
                        <li><a href="Unavailble.html">Serie A</a>
                        </li>
                    </ul>
                </li>
 
            </ul>    
    		</nav>

CSS

nav ul{
background-color: #43a286;
overflow: hidden;
	color:white;
padding: 0;
	text-align: center;
	margin: 0;
	-webkit-transition: max-height 0.4s;
	-ms-transition: max-height 0.4s;
	-moz-transition: max-height 0.4s;
	-o-transition: max-height 0.4s;
	transition: max-height 0.4s;
}

nav ul li{
display: inline-block;
padding: 20px;
width: 12.3%;
text-align: center;
}

nav ul li:hover {
background-color: #399077;
	
}

li .star:after {
  content: '';
  display: none;
  width: 0;
  height: 0;
  border-top: 6px solid #333;
  border-right: 6px solid transparent;
  border-left: 6px solid transparent;
  position: absolute;
  z-index: 1;
  top: 100%;
  left: 50%;
  margin-left: -6px
}

nav ul .arrow:hover{
/*border-bottom: 5px solid black;	*/
}

nav ul ul{
display: none;
	position:absolute;
	background-color: #399077;
	margin-left: -3%;
	z-index:150;
}

nav ul ul li{
  display: block;
    width:75%;
	text-align: center;
}







nav ul li:hover ul{
margin-top: 2%;
	  display: block;
     border-bottom-left-radius: 5%;
     border-bottom-right-radius: 5%;
     width: 165px;
}



nav ul li a, visited{
color:white;
font-family: 'CFJackStory-Regular', Helvetica, Arial, sans-serif;
display: block;
text-decoration: none;
}

nav ul ul li a:hover{
color:white;
font-size: 20px;
}