html, body {
     height: 100%;
}
.global-container {
     height: 100%;
     display: flex;
     align-items: center;
     justify-content: center;
     background-color: #f5f5f5;
}
form {
     padding-top: 10px;
     font-size: 14px;
     margin-top: 30px;
}
.card-title {
     font-weight: 300;
}
.btn {
     font-size: 14px;
     margin-top: 20px;
}
.login-form {
     width: 330px;
     margin: 20px;
}
.sign-up {
     text-align: center;
     padding: 20px 0 0;
}
.alert {
     margin-bottom: -30px;
     font-size: 13px;
     margin-top: 20px;
}

.center {
  display: block;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 20px;
}