body{
    margin: 20px;
}
.main-form{
    max-width: 500px;
    margin: auto;
}
.alert-dark{
    max-width: 500px;
    margin: auto;
    margin-top: 20px;
}
h2{
	text-align: center;
	text-decoration: underline;
	padding-bottom: 0px;
}