:is(.main-txt,.main_txt_desc) .mbk-ac,:is(.main-txt,.main_txt_desc) .mbk-lc,:is(.main-txt,.main_txt_desc) section.mbk-steps,:is(.main-txt,.main_txt_desc) section.mbk-arts,:is(.main-txt,.main_txt_desc) section.mbk-rel,:is(.main-txt,.main_txt_desc) .bc{width:1170px;max-width:calc(100vw - 40px);margin-left:50%;transform:translateX(-50%);box-sizing:border-box}