.second-class-menu .el-menu{display:-webkit-box;display:-ms-flexbox;display:flex;height:58px;margin:0 auto;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;border-top:1px solid #dcdcdc;border-bottom:1px solid #dcdcdc}.second-class-menu .el-menu .el-menu-item{font-size:16px;color:#5f6c65;letter-spacing:0;text-align:center;height:58px;margin-left:32px;margin-right:32px;border-bottom:none}@media screen and (max-width:1280px){.second-class-menu .el-menu .el-menu-item:last-child{margin-right:155px}}.studentHomework__div .second-menu{position:fixed;z-index:2;top:56px;left:0;width:100%;height:70px}.studentHomework__div .content-region{margin-top:116px}