JSFiddle - React, Tailwind, and code Playground

HTML

<div class="wrap">
  <button class="dropdown">Rolovacie menu dole</button>
  <div class="dropdown-moznosti">
    <a href="#">Home</a><br>
    <a href="#">O mne</a><br>
    <a href="#">Kontakt</a><br>
  </div>
</div>

CSS

.dropdown {
   background: lightgreen;
   cursor: pointer;
}

.dropdown-moznosti {
  display: none;
}

.dropdown-moznosti a {
  color: red;
  text-decoration: none;
}

/* .dropdown-moznosti a:focus
.dropdown-moznosti a:hover {
  display: block;
}
 */

.wrap:hover .dropdown-moznosti {
  display: block;
}