<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div class="card-image-root">
        <img
            class="card-image"
            src="https://images.unsplash.com/photo-1527004013197-933c4bb611b3?ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&ixlib=rb-1.2.1&auto=format&fit=crop&w=720&q=80"
        >
    
        <div class="card-image-overlay">
            <a class="card-button" href="javascript:alert(1);">
                Click me!!!
            </a>
        </div>
    </div>
</body>
</html>
.card-image-root {
  max-width: 300px;
  height: auto;
  position: relative;
}

.card-image-overlay {
  display: none;
  border-radius: 20px;
}

.card-image {
  width: 100%;
  border-radius: 20px;
}

.card-image-root:hover .card-image-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,.8);
  position: absolute;
  top: 0;
  left: 0;
}

.card-button {
  padding: 0.5rem 1.5rem;
  border-radius: 10px;
  background: white;
  border: none;
  cursor: pointer;
  color: red;
  text-decoration: none;
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.