html body {
    background-color: #002447;
}
#main-body{
    text-align: center;
}
#main-body .desc{
    font-size: 30px;
    color: gray;
}
#other_page #other-pages .logo{
    text-align: center;
    
}
#main-body .enter{
    font-size: 29px;
}
.modal .btn-close{
    float: right;
}
.modal .form-group .error{
    color: #721c24;
    padding: 8px 10px;
    text-align: center;
    border-radius: 5px;
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    display: none;
  }