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# Notebook Stylesheets (CSS)

Notebook Stylesheets (CSS)

`sagenb.notebook.css.``css`(color='default')

  Return the CSS header used by the Sage Notebook.

  INPUT:

  - `color` - string or pair of html colors, e.g., ‘gmail’ ‘grey’ `('#ff0000', '#0000ff')`

  EXAMPLES:

      sage: import sagenb.notebook.css as c
      sage: type(c.css()[0])
      <type 'str'>

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