oik-css

• Use the CSS block to add custom CSS.
• Use the GeSHi block to syntax highlight: CSS, HTML, JavaScript, jQuery, PHP, MySQL or None.

For backward compatibility:

• Use the [bw_css] shortcode to add custom CSS as and when you need it.

For designers, developers and documenters [bw_css] supports echoing of the custom CSS, allowing you to document the CSS you are using.
For readability, the CSS is processed using the Generic Syntax Highlighter (GeSHi) processing.

• Use the [bw_geshi] shortcode for syntax highlighting of: CSS, HTML(5), JavaScript and jQuery, PHP and MySQL.
  Also supports language: none.

If the oik base plugin is activated

• Use the [bw_autop] shortcode to disable or re-enable WordPress’s wpautop() logic.

• Use the experimental [bw_background] shortcode to display an attached image in the background.

Further reading

If you want to read more about the oik plugins then please visit the
oik plugin
“OIK – OIK Information Kit”