.container { width: 20%; } h1 { text-align: center; } button { padding: 12px; margin-bottom: 30px; border-radius: 20px; cursor: pointer; transition: 400ms ease-in-out; font-size: 1.1rem; } button:hover { background-color: rgb(200, 200, 200); } .random-img { border: 2px solid black; }