html { background: #F7A8B8; text-align: center; font-family: "Lucida Console", "Courier New", monospace; } body { margin-top: 3%; } #streamchat { display: flex; height: 100%; max-width: 960px; margin: 0 auto; } #stream { background-color: white; padding: 5%; box-shadow: 10px 10px 10px black; border-radius: 5px; width: 100%; height: 100%; margin-right: 4em; } #chatbox { width: 100%; height: 100%; margin-left: 4em; }