Title: Usage question
Last modified: August 21, 2016

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# Usage question

 *  Resolved [SimplyMarkB](https://wordpress.org/support/users/smartguyus/)
 * (@smartguyus)
 * [12 years, 6 months ago](https://wordpress.org/support/topic/usage-question/)
 * Hi everybody,
 * **I have a question.. in my wordpress header.php, **
 * <link rel=”stylesheet” href=”<?php bloginfo(‘stylesheet_url’); ?>” type=”text/
   css” />
 * **I want to use this plugin to create custom stylesheets based on browser.**
 * _Any suggestions on usage? I tried_
    <?php if(is_firefox($version)) { <link rel
   =”stylesheet” type=”text/css” href=”mystyle.css”> }; ?>
 * Can I do calls like this? Will this plugin work in header.php?? Not sure that
   I am doing wrong.. suggestions??
 * -Mark
 * [http://wordpress.org/plugins/php-browser-detection/](http://wordpress.org/plugins/php-browser-detection/)

Viewing 1 replies (of 1 total)

 *  Plugin Author [Mindshare Labs, Inc.](https://wordpress.org/support/users/mindshare/)
 * (@mindshare)
 * [12 years, 3 months ago](https://wordpress.org/support/topic/usage-question/#post-4245066)
 * Your PHP syntax is wrong. You would need to do something like this:
 *     ```
       <?php if(is_firefox()) : ?>
       <link rel="stylesheet" type="text/css" href="mystyle.css">
       <?php endif; ?>
       ```
   

Viewing 1 replies (of 1 total)

The topic ‘Usage question’ is closed to new replies.

 * ![](https://ps.w.org/php-browser-detection/assets/icon-256x256.png?rev=999338)
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## Tags

 * [css](https://wordpress.org/support/topic-tag/css/)

 * 1 reply
 * 2 participants
 * Last reply from: [Mindshare Labs, Inc.](https://wordpress.org/support/users/mindshare/)
 * Last activity: [12 years, 3 months ago](https://wordpress.org/support/topic/usage-question/#post-4245066)
 * Status: resolved