make_css {tableHTML}

Create a css file or string

Description

make_css will create a css file or string which can also be used in shiny

Usage

make_css(..., file = NULL)

Arguments

...

css style definitions. Each object you provide must be a list of three elements. The first element will be a vector of the selectors to be styled (e.g. table, th, an id or html class). If the first element is a vector of length greater than one then the selectors will be comma separated in the css. The second element will be a vector of the css definitions and the third element will a vector of the values of those definitions.

file

Character sting. If a file name is provided then the css code will be printed into that file. If the argument is NULL (default) then a string will be returned.

Details

make_css will create a css file or string which can also be used in shiny. If the argument file is provided the css code will be printed out to the file. The file can then be used in shiny with the includeCSS function. Alternatively there are two ways to use make_css in order to add css to your shiny app. If you have a very small css file or you are just testing your app you can use tags$style with make_css directly. There is an example in the examples section. Another way (which will make your code cleaner) is to create your css in global.R assign it to a variable and then use that variable with tags$style. There is another example on the examples section. Keep in mind that for complete shiny apps it is best practice to use a file and load it with includeCSS. This will be faster as well as it won't run the code to create the css file each time.

Value

css definitions.

Examples

make_css(list('table', c('text-align', 'font-size'), c('center', '20px')),
         list('th', c('background-color', 'height'), c('lightgreen', '30px')))
         
make_css(list(c('table', 'td'), c('text-align', 'font-size'), c('center', '20px')),
         list('th', c('background-color', 'height'), c('lightgreen', '30px')))         

make_css(list('tr:hover', c('text-align', 'font-size'), c('center', '20px')),
         list('th', c('background-color', 'height'), c('lightgreen', '30px')))