K40S

This Plugin shows a warning, when the visitors browser was made by a prism-contributing company.
So far there is a english and a german translation. You can contribute more languages, if you want. Just open a pull request on <a href="https://github.com/k3ll4gr0up/prism-warning" rel="nofollow ugc">GitHub</a>.
Please note that this is still work in progress. (As you can see by the version number which has not reached 1.0 yet.) If you want to contribute, write you code and submit it at <a href="https://github.com/k3ll4gr0up/prism-warning" rel="nofollow ugc">GitHub</a>.
If you don’t know how to code but still want to contribute, please take a few minutes to write a friendly recommendation or tell your friends about this.
<h4>Note about the version numbers:</h4>
I use the 0.x numbers on WordPress SVN (no buggy code there) and then publish the newer (buggy) code on GitHub with a version like 0.x.1.

Prism Warning

This Plugin shows a warning, when the visitors browser was made by a prism-contributing company.

qstudio

Easily include browser specific stylesheets in templates or select browser and version specific classes in CSS.
Conditional browser stylesheets are added after the main theme style.css allowing them to overrule previous rules – you only need to add the CSS rules that should change.
This plugin uses up-to-date WordPress top level functions, sanitizes all input data and is fully internationalized.
For feature request and bug reports, <a href="https://qstudio.us/support/categories/conditional-stylesheets-and-body-classes" rel="nofollow ugc">please use the Q Support Website</a>.
Please do not use the WordPress.org forum to report bugs, as we no longer monitor or respond to questions there.
<h4>Features</h4>
<ul>
<li>Checks for and adds browser and version specific stylesheets – such as “browsers-windows-firefox.css”.</li>
<li>Add browser and version specific body classes to all pages – such as body.browsers-msie-10</li>
<li>Includes the Mobile Detect class and adds mobile & touch body classes.</li>
<li>Adds a post type body class, for example: “posttype-page”.</li>
<li>Inserts handy HTML comments in the HTML footer of template files to tell you which CSS files could be used and which were found.</li>
</ul>

Conditional Stylesheets and Body Classes

Add conditional browser stylesheets and body class declarations

Prism Warning vs Conditional Stylesheets and Body Classes