org-html-style-default

org-html-style-default is a variable defined in `ox-html.el'.
Its value is

""

• This variable may be risky if used as a file-local variable.

Documentation:
The default style specification for exported HTML files.
You can use `org-html-head' and `org-html-head-extra' to add to
this style. If you don't want to include this default style,
customize `org-html-head-include-default-style'.