@media (max-width:767px) {
    /*banner*/
    .banner_en_contact .txt::after{width:160px;border-left:5px solid #ffffff; }
    .banner_en_hire .txt::after{width:180px;border-left:5px solid #ffffff; }
    .banner_en_training .txt::after{width:220px;border-left:5px solid #ffffff; }
}