form {
  background-color: white;
  padding: 20px;
  border: 2px solid #0077b6;
  border-radius: 5px;
  max-width: 500px;
  margin: 0 auto;
  text-align: center;
}

form label {
  display: block;
  margin-bottom: 10px;
  text-align: left;
}

form input[type="date"],
form input[type="text"],
form input[type="number"] {
  display: block;
  margin: 0 auto;
  padding: 5px;
  border-radius: 3px;
  border: 1px solid #0077b6;
  width: 80%;
  margin-bottom: 10px;
}

form input[type="submit"] {
  background-color: #0077b6;
  color: white;
  border: none;
  padding: 15px 20px; /* パディングを増やす */
  border-radius: 3px;
  margin-top: 60px; /* 上部のマージンを増やす */
  cursor: pointer;
  width: 80%;
  display: block;
  margin: 0 auto;
}