.login-form {
    width: 400px;
    margin: 50px auto;
}
.login-form form {
    margin-bottom: 15px;
    background: #f7f7f7;
    box-shadow: 0px 2px 3px 0px rgba(0, 0, 0, 0.3);
    padding: 30px;
    border-radius: 10px;
}
.login-form h1 {
    margin: 0 0 25px ;
    font-weight: bold;
    font-family: 'Tw Cen MT', 'Open Sans', 'sans-serif';
}
.form-control, .btn {
    min-height: 38px;
    border-radius: 2px;
}
.btn {        
    font-size: 15px;
    font-weight: bold;
}
select:required:invalid {
  color: gray;
}
option[value=""][disabled] {
  display: none;
}
option {
  color: black;
}