.container { position: relative; width: 100%; max-width: 1200px;- } .container img { width: 1080px; height: 720px; } .container .btn { position: absolute; top: 90%; left: 49%; transform: translate(-50%, -50%); background-color: lightskyblue; color: black; font-size: 20px; padding: 16px 30px; cursor: pointer; text-align: center; font: MingLiU-ExtB; font-family: MingLiU-ExtB; }