CSS Naked Day

CSS Naked Day plugin for WordPress automatically strips off XML/HTML stylesheet references, embedded stylesheets and inline styles—all without editing your template! It also provides a function to determine whether it is the 9th of April on the recommended worldwide 48-hour CSS Naked Day period or just your local 24-hour period if ever you want to automate a message telling viewers why your site is in the nude.

Download Plugin

Usable Functions

bool is_naked_day(void)

returns true when it is the 9th of April on the time span you’ve set, false otherwise. Sample usage:

  if (is_naked_day()) {
?>  <h3>What happened to the design?</h3>
    <p>To know more about why styles are disabled on this website
      visit the <a href="" title="Web
      Standards Naked Day Host Website">Annual CSS Naked Day</a>
      website for more information.</p>

Known Issues

The plugin would also delete occurences of inline styles (style="") that are intended as text and not as the attribute for styling markup itself. For example, in CSS tutorial pages.

Resolved in Version 1.1.2

In versions prior to 1.1.2, the plugin would cause errors for some inline styles that have escaped quotation marks of the same type as the attribute value delimiter.

For example:

style="font-family:\"Lucida Grande\",\"Lucida Sans Unicode\",sans-serif;"

… would leave …

Lucida Grande\",\"Lucida Sans Unicode\",sans-serif;"

… in the markup, as the regular expression could only remove code from the style attribute only up to the first matching quotation mark without regard to the escaped ones.

Change Log

Version 1.2
Released 4 April 2008


  • Changed CSS Naked Day date to reflect event move from April 5 to 9.
Version 1.1.2
Released 6 April 2007


  • Fixed regex for patterns to avoid possible conflicts.
  • Fixed known issue about escaped quotation marks in inline styles.
Version 1.1.1
Released 5 April 2007


  • Fixed stylesheet reference regex/consuming all <link> elements before targetted one.
Version 1.1
Released 31 March 2007


  • Added option to activate only during the 24-hour local time.
  • Added configuration page.
Version 1.0.1
Released 30 March 2007:


  • Fixed embedded stylesheet regex/conflict with delimiter.
Version 1.0
Released 28 March 2007
  • First release of the CSS Naked Day plugin.


Copyright © 2007-2008 Aja Lorenzo Lapus

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

Read the full license

188 replies on “CSS Naked Day”

[…] 9 апреля оключить на ÑÐ°Ð¹Ñ‚е все оформление. На ÑÑ‚ранице акции даже предлагаются средства автоматизации этой операции, вплоть Ð´Ð¾ Ð¿Ð»Ð°Ð³Ð¸Ð½Ð¾Ð² Ðº Wordpress. […]


this time is 8.April 2008 but your plugin stripped off all my style.css not 9.april 2008 ;);)


and your site is also without style.css hours before 9.04.2008 😉


Monika, my plugin defaults to 48 hours of April 9 anywhere around the world to activate. Maybe you wanted to set your blog to just the local time. Look for the Options/Settings on your WordPress admin. 🙂

[…] 4月9号是CSS Naked Day,所以我的博客就成这样了。所谓CSS Naked Day就是将页面的CSS样式都略掉,只显示文本内容的一种活动,大家都叫它“裸奔日”。虽然我不是搞设计的,但是也凑一回热闹。我博客用了Wordpress Naked Day Plugin,有感兴趣的也参与一下吧。 […]

Leave a Reply

Your email address will not be published. Required fields are marked *