@media screen and (max-width:319px){.btn_footer,.btn_nhanthongtin{padding:0 10px;font-size:12px}.img-tongquan{margin-bottom:20px}.sub-title-1{font-size:15px}.sub-title-2{font-size:20px}.box-noidung ol{-moz-column-count:1;-webkit-column-count:1;column-count:1}#col-31936335 .title_2{font-size:17px}body,.box-text{font-size:18px}.off-canvas-center .nav-sidebar.nav-vertical>li>a{font-size:20px}#hotline-top a{padding:10px 10px;border-radius:30px;width:160px;font-size:13px;margin:0 10px;text-align:center;display:block}.noibat .box-text p{line-height:26px;overflow:auto}.form_ngang_2{background-attachment:inherit !Important}}@media (min-width:320px) and (max-width:480px){.btn_footer,.btn_nhanthongtin{padding:0 10px;font-size:12px}.img-tongquan{margin-bottom:20px}.sub-title-1{font-size:15px}.sub-title-2{font-size:20px}.box-noidung ol{-moz-column-count:1;-webkit-column-count:1;column-count:1}#col-31936335 .title_2{font-size:17px}body,.box-text{font-size:18px}.fix-tienich .box-text p{font-size:15px}.off-canvas-center .nav-sidebar.nav-vertical>li>a{font-size:20px}#hotline-top a{padding:10px 10px;border-radius:30px;width:160px;font-size:13px;margin:0 10px;text-align:center;display:block}.noibat .box-text p{line-height:26px;overflow:auto}.form_ngang_2{background-attachment:inherit !Important}}@media (min-width:481px) and (max-width:767px){.img-tongquan{margin-bottom:20px}body,.box-text{font-size:18px}.off-canvas-center .nav-sidebar.nav-vertical>li>a{font-size:20px}#hotline-top a{padding:10px 10px;border-radius:30px;width:130px;font-size:13px;margin:0 10px;text-align:center;display:block}.noibat .box-text p{line-height:26px;overflow:auto}.form_ngang_2{background-attachment:inherit !Important}}