body, html {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background: url("/Images/LoginBackground.jpg") center center no-repeat;
  background-size: cover;
}

.login-box-container {
  width: 30%;
  border: 1px #000 solid;
  background-color: #fff;
}
.login-box-container h2 {
  background-color: #000;
  padding: 10px 10px;
  color: #fff;
  margin: 0;
}
.login-box-container .content {
  box-sizing: border-box;
  padding: 10px 10px;
  margin-top: 10px;
  color: #000;
}
.login-box-container .content .form-item {
  display: block;
  margin-bottom: 20px;
}
.login-box-container .content .form-item label {
  font-weight: bold;
}
.login-box-container .content .form-item input[type=submit] {
  background-color: #000;
  color: #fff;
  font-weight: bold;
  padding: 6px 20px;
  border: 1px #f00 solid;
  border-radius: 8px;
}
.login-box-container .content .form-item input[type=submit]:hover {
  background-color: #fff;
  color: #000;
}