@media (max-width: 991.98px)
{
    .form-box
    {
        width: auto;
    }
    fieldset
    {
        margin-left: 0;
    }
}
@media (max-width: 575.98px)
{
    fieldset
    {
        margin-left: 0;
        padding-left: 0;
    }
    legend
    {
        margin-left: 0;
    }
}