.wrap{width:980px}.nav_top{padding:24px 0 0 20px}.top_tel{padding:21px 20px 0 0}.lesson{width:314px;height:475px;margin:0 19px 19px 0}.lesson:nth-child(3n){margin:0 0 20px}.lesson_img{height:225px}.lesson_t{margin:0 0 11px}.lesson_e{margin:0}.lesson_md{margin:0 0 14px}.lesson_views{width:118px;padding:6px 0 0;font-size:23px}.about{min-height:760px;padding:110px 0}