.MuiDataGrid-root .MuiDataGrid-columnHeader:focus{outline:none!important}.MuiDataGrid-root .MuiDataGrid-columnHeader:focus-within{outline:none!important}.MuiDataGrid-root .MuiDataGrid-cell:focus{outline:none!important}.MuiDataGrid-root .MuiDataGrid-cell:focus-within{outline:none!important}