.well {
  min-height: 250px;
  min-width: 300px;
  max-width: 600px;
  margin: 50px auto 0 auto;
  padding: 50px 50px;

  background: linear-gradient(#fcfcfc, #f9f9f9);
  box-shadow: 0 0 8px gray;

}

.login-center {
  text-align: center;
  margin: auto;
}

/** alertボックス **/

.alert-style-danger {
  padding: 20px;
  border-radius: 4px;
  border: 2px solid #ff5aad;
  background-color: #ffeff7;

  margin-bottom: 35px;
}

.alert-style-success {
  padding: 20px;
  border-radius: 4px;
  border: 2px solid #6a9fff;
  background-color: #c5d9ff;

  margin-bottom: 35px;
}