HTML SOURCE CODE IS HERE
<!DOCTYPE html>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="b.css">
</head>
<body>
<div class="gallery">
<img src="https://picsum.photos/id/1040/300/300" alt="a house on a mountain">
<img src="https://picsum.photos/id/106/300/300" alt="sime pink flowers">
<img src="https://picsum.photos/id/136/300/300" alt="big rocks with some trees">
<img src="https://picsum.photos/id/1039/300/300" alt="a waterfall, a lot of tree and a great view from the sky">
<img src="https://picsum.photos/id/110/300/300" alt="a cool landscape">
<img src="https://picsum.photos/id/1047/300/300" alt="inside a town between two big buildings">
<img src="https://picsum.photos/id/1057/300/300" alt="a great view of the sea above the mountain">
</div>
</body>
</html>
