The <content> HTML element—an obsolete part of the Web Components suite of technologies—was used inside of Shadow DOM as an insertion point, and wasn't meant to be used in ordinary HTML. It has now been replaced by the slot element, which creates a point in the DOM at which a shadow DOM can be inserted.
content(
...,
attr = NULL,
separate = FALSE,
collapse = "",
formatted = html5_vars$formatted
)A HTML tag string.
A string or vector of content to pass to the tag.
A named list or named vector, names are attribute names and values are attribute values.
TRUE/FALSE, If TRUE, returns separate tags for each item of ...; if FALSE, returns one tag with the items of ... in the tag content.
A string. If NULL, returns a vector the same length as ... instead of collapsing the tags into one string.
TRUE/FALSE, if TRUE, HTML will be generated with indents and new lines for readability at the cost of performance. Controlled by setting the environment variable html5_vars$formatted <- TRUE/FALSE
Learn more at https://developer.mozilla.org/en-US/docs/Web/HTML/Element/content.
content(attr = list(class = "test"))
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