body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  min-height: 100vh;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

button#btn-inserir {
  padding: 10px 20px;
  font-size: 1rem;
  cursor: pointer;
  margin-top: 10px;
}

#paragrafo-alterado {
  margin-top: 20px;
}