.chat-box { display: flex; flex-direction: column; max-width: 720px; margin: 30px auto; font-family: "Hiragino Sans", Arial, sans-serif; } .chat-message { display: flex; align-items: flex-end; margin-bottom: 18px; } .chat-message.left { justify-content: flex-start; } .chat-message.right { justify-co…