<div class="overlay">
  <p>Explore the World</p>
</div>
div {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 auto;
  background: url("https://source.unsplash.com/6Mxb_mZ_Q8E/750x500");
  width: 46.875rem;
  height: 31.25rem;
  font-size: 3.75rem;
  font-family: sans-serif;
}
.overlay {
  position: relative;
}
.overlay::after {
  position: absolute;
  content: '';
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: black;
  opacity: 0.3;
}
p {
  color: white;
  opacity: 1;
  z-index: 999;
}

External CSS

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External JavaScript

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