#principal {
    margin-top:7%;
}
#logo {
    margin-bottom:3%;
}
#poweredby{
    margin-top:5%;

}
#poweredby span{
    color: white;
    margin-right: 1%;
}

#btnLogin {

    background-color: #2e3148; /* Green */
    color:#fff
}
#btnLogin:hover {
    background-color: #f58634; /* Green */
    color:#000
}
#msg{
  margin: 1% 0 1% 0;

}