body {
    padding-top: 40px;
    padding-bottom: 40px;
}
.form{
    max-width: 800px;
    padding: 15px;
    margin: 0 auto;
}
.required{
    color:red;
}
.alert{
    padding: 2px;
}
.form-check label{
    padding-left: 2px;
}