JSFiddle - React, Tailwind, and code Playground

by LĂ©o Durand

HTML

<nav>
  <ul class="cf">
    <li>
      <a href="#">01</a>
      <ul class="dropdown">
        <li><a href="#">E-CAMPUS</a></li>
      </ul>
    </li>
    <li>
      <a href="#">02</a>
      <ul class="dropdown">
        <li><a href="#">PEGASEZBUZZ</a></li>
      </ul>
    </li>
  </ul>
</nav>

CSS

nav .cf,
.dropdown {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
}

nav .cf li {
  position: relative;
}

nav .cf li a {
  color: #444;
  padding: 0 10px;
  text-decoration: none;
}

nav .cf li:hover .dropdown {
  opacity: 1;
  top:35px;
  visibility: visible;
}


/* style your dropdown menu here */

.dropdown {
  width: 100%;
  list-style: none;
  font-size: 10pt;
  position: absolute;
  top: 30px;
  opacity: 0;
  visibility: hidden;
  z-index: 1;
  -webkit-transition: all .25s ease;
  -moz-transition: all .25s ease;
  -ms-transition: all .25s ease;
  -o-transition: all .25s ease;
  transition: all .25s ease;
}

.dropdown li {
  display: flex;
}

nav .cf .dropdown li a {
  padding: 10px 20px;
  background: #bbb;
  text-align: center;
  white-space: nowrap;
}


/* triangle */

.dropdown:after {
  bottom: 100%;
  content: " ";
  position: absolute;
  border: solid transparent;
  border-bottom-color: #bbb;
  border-width: 10px;
}