JSFiddle - React, Tailwind, and code Playground

HTML

<div class="main-container">
  <a target="_blank" href="DPBij1.jpg">
     <img class="imgclass" src="DPBij1.jpg">
  </a>
  <a target="_blank" href="DPBij2.jpg">
     <img class="imgclass" src="DPBij2.jpg">
  </a>
  <a target="_blank" href="DPBij3.jpg">
     <img class="imgclass" src="DPBij3.jpg">
  </a>
<!-- Repetitive for the next 6 pictures -->
</div>

CSS

.imgclass {
  border: 1px solid #ddd;
  border-radius: 4px;
  padding: 5px;
  max-width: 13.5vw;
  max-height: 15hz;
}
img.imgclass:hover {
  box-shadow: 0 0 2px 1px rgba(0, 140, 186, 0.5);
}
.main-container {
    max-width: 60%;
    max-height: 44.44%;
    margin-left: 19.6875%;
    margin-top: 20%;
    padding: 10px;
    overflow: hidden;
    background-color: #FEF39F;
}