With the tab_style() function we can target specific cells and apply styles to them. This is best done in conjunction with the helper functions cell_text(), cell_fill(), and cell_borders(). At present this function is focused on the application of styles for HTML output only (as such, other output formats will ignore all tab_style() calls). Using the aforementioned helper functions, here are some of the styles we can apply:

  • the background color of the cell (cell_fill(): color)

  • the cell's text color, font, and size (cell_text(): color, font, size)

  • the text style (cell_text(): style), enabling the use of italics or oblique text.

  • the text weight (cell_text(): weight), allowing the use of thin to bold text (the degree of choice is greater with variable fonts)

  • the alignment and indentation of text (cell_text(): align and indent)

  • the cell borders (cell_borders())

tab_style(data, style, locations)



A table object that is created using the gt() function.


a vector of styles to use. The cell_text(), cell_fill(), and cell_borders() helper functions can be used here to more easily generate valid styles. If using more than one helper function to define styles, all calls must be enclosed in a list().


the cell or set of cells to be associated with the style Supplying any of the cells_*() helper functions is a useful way to target the location cells that are associated with the style application. These helper functions are: cells_title(), cells_column_labels(), cells_group(), cells_stub(), cells_stubhead(), cells_data(), cells_summary(), and cells_grand_summary(). Please see the help article location_cells for more information on how these helper functions can be used. Additionally, we can enclose several cells_*() calls within a list() if we wish to apply styles to different types of locations (e.g., cell data values, stub group headings, the table title, etc.).


an object of class gt_tbl.


See also

cell_text(), cell_fill(), and cell_borders() as helpers for defining custom styles and cells_data() as a useful helper function for targeting one or more data cells to be styled.

Other table-part creation/modification functions: gt_preview, gt, tab_footnote, tab_header, tab_options, tab_row_group, tab_source_note, tab_spanner, tab_stubhead


# Use `exibble` to create a gt table; # add styles that are to be applied # to data cells that satisfy a # condition (using `tab_style()`) tab_1 <- exibble %>% dplyr::select(num, currency) %>% gt() %>% fmt_number( columns = vars(num, currency), decimals = 1 ) %>% tab_style( style = list( cell_fill(color = "lightcyan"), cell_text(weight = "bold") ), locations = cells_data( columns = vars(num), rows = num >= 5000) ) %>% tab_style( style = list( cell_fill(color = "#F9E3D6"), cell_text(style = "italic") ), locations = cells_data( columns = vars(currency), rows = currency < 100) ) # Use `sp500` to create a gt table; # color entire rows of cells based # on values in a particular column tab_2 <- sp500 %>% dplyr::filter( date >= "2015-12-01" & date <= "2015-12-15" ) %>% dplyr::select(-c(adj_close, volume)) %>% gt() %>% tab_style( style = cell_fill(color = "lightgreen"), locations = cells_data( rows = close > open) ) %>% tab_style( style = list( cell_fill(color = "crimson"), cell_text(color = "white") ), locations = cells_data( rows = open > close) )