#art_jg_form .hide {
    display: none;
}

#art_jg_form p.error > input {
    border: 1px solid #FF0000;
}

#art_jg_form p.wrap-input-text > span {
    display: none;
}

#art_jg_form p.wrap-input-text.error > span {
    display: block;
}

.result_ko p.ok {
    display: none;
}

.result_ok p.ko {
    display: none;
}

#art_jg_calulate {
    display: block;
}