JSFiddle - React, Tailwind, and code Playground

HTML

<ul class="flex-container">
  <li class="flex-item">
      <a href="javascript:void(0);"><img src="/images/bild1.jpg" width="120" height="120" border="0" /></a>
      Login
  </li>
  <li class="flex-item">
      <a href="javascript:void(0);"><img src="/images/bild1.jpg" width="120" height="120" border="0" /></a>
      Geburtstage
  </li>
  <li class="flex-item">
      <a href="javascript:void(0);"><img src="/images/bild1.jpg" width="120" height="120" border="0" /></a>
      Jubilare
  </li>
  <li class="flex-item">
      <a href="javascript:void(0);"><img src="/images/bild1.jpg" width="120" height="120" border="0" /></a>
      Eintritte
  </li>
  <li class="flex-item">
      <a href="javascript:void(0);"><img src="/images/bild1.jpg" width="120" height="120" border="0" /></a>
      News
  </li>
</ul>

CSS

.flex-container {
  padding: 0;
  margin: 0;
  list-style: none;
  
  display: -webkit-box;
  display: -moz-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  
  -webkit-flex-flow: row wrap;
  justify-content: space-around;
}

.flex-item {
  padding: 5px;
  width: 120px;
  height: 150px;
  margin-top: 10px;
  border: solid 1px #000;
  
  color: red;
  text-align: center;
}