// BS4 has not yet converted the following to variables - keep an eye on it and move to variables when possible. .thead-inverse { th { //color: $bmd-inverse; // #fff; //background-color: $gray-dark; } } .thead-default { th { //color: $gray; //background-color: $bmd-inverse-lighter; //$gray-lighter; } } .table-inverse { color: $bmd-inverse-light; //$gray-lighter; //background-color: $gray-dark; //th, //td, //thead th { // border-color: $gray; //} }