body{background-color:#fff;margin:0;padding:0;height:100vh;display:flex;justify-content:center;align-items:center}body,html{height:100%}.styled-box{background-color:#fff;padding:20px;border-radius:12px;max-width:400px;width:100%;display:flex;flex-direction:column;align-items:center;gap:16px;box-sizing:border-box;border:1px solid #ddd;box-shadow:0 4px 8px rgba(0,0,0,.1)}.send-button,.text-field{width:100%}@media (max-width:768px){.styled-box{max-width:90%;padding:15px}.send-button,.text-field{font-size:14px}}@media (max-width:480px){.styled-box{max-width:95%;padding:10px}.send-button,.text-field{font-size:12px}}