I need to have multiple raw style attributes like :
$scope.css = \"\'width\': \'calc(100% - \"+$scope.fixedColumnsWidth+\"\'),\'margin-left\':\'\"+ $scope.fi
ng-style waits for an object literal, so you need to adjust your code to
$scope.css = { width: 'calc(100% -'+$scope.fixedColumnsWidth+')', 'margin-left': $scope.fixedColumnsWidth }