Convenience function for building CSS style declarations (i.e. the string that goes into a style attribute, or the parts that go inside curly braces in a full stylesheet).
css(..., collapse_ = "")
Named style properties, where the name is the property name and the argument is the property value. See Details for conversion rules.
(Note that the parameter name has a trailing underscore
character.) Character to use to collapse properties into a single string;
'-' (minus) as a separator character in property names, but
this is an inconvenient character to use in an R function argument name.
Instead, you can use
'.' (period) and/or
'_' (underscore) as
separator characters. For example,
css(font.size = "12px") yields
To mark a property as
!important, add a
'!' character to the end
of the property name. (Since
'!' is not normally a character that can be
used in an identifier in R, you'll need to put the name in double quotes or
Argument values will be converted to strings using
paste(collapse = " "). Any property with a value of
"" (after paste) will be dropped.
padding <- 6 css( font.family = "Helvetica, sans-serif", margin = paste0(c(10, 20, 10, 20), "px"), "padding!" = if (!is.null(padding)) padding )
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