In java (with three image files; nature, cars. and Bikes

 /*CSS style template for the image grid from W3schools*/ * { box-sizing: border-box; } h1 { color: #d54d7b; font-family: "Great Vibes", cursive; font-size: 9vw; line-height: 300px; font-weight: normal; margin-bottom: 0px; margin-top: 10px; text-align: center; text-shadow: 0 1px 1px #fff; } body { margin: 0; font-family: Arial; } /* The grid: Four equal columns that floats next to each other */ .column { float: left; width: 25%; padding: 10px; } /* Style the images inside the grid */ .column img { opacity: 0.8; cursor: pointer; width: 100%; } .column img:hover { opacity: 1; } /* Clear floats after the columns */ .row:after { content: ""; display: table; clear: both; }