Autoresponsive

form {
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 16px;
}

.name {
  flex-grow: 1;
  flex-basis: 160px;
}

.email {
  flex-grow: 3;
  flex-basis: 200px;
}

button {
  flex-grow: 1;
  flex-basis: 80px;
}