.box{width:700px;margin:50px auto;padding:10px}.chat-box{height:750px;overflow-y:auto;padding:10px;display:flex;flex-direction:column;font-family:ui-sans-serif,-apple-system,system-ui,Segoe UI,Helvetica,"Apple Color Emoji",Arial,sans-serif,"Segoe UI Emoji",Segoe UI Symbol}.user-msg{display:inline-block;margin:5px 0 5px auto;padding:8px 16px;border-radius:20px;background-color:#f4f4f4;color:#000;max-width:70%;word-wrap:break-word;text-align:left}.ai-msg{display:inline-block;margin:5px auto 5px 0;padding:8px 16px;border-radius:20px;color:#333;max-width:70%;word-wrap:break-word;text-align:left}.input-box{border-radius:50px;border:1px solid #D3D3D3}