> For the complete documentation index, see [llms.txt](https://xoops.gitbook.io/cssholmes-tutorial/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://xoops.gitbook.io/cssholmes-tutorial/master.md).

# Introduction

![](/files/-MEEtmn1YLYiTDiz5yME)

## Module cssHolmes

#### for XOOPS 2.5.10+

#### for PHP 7.2+

![](/files/-MEEtmn2RMO8e5uRvePa)

### User Manual

© 2020 XOOPS Project ([www.xoops.org](https://xoops.org))

### Module Purpose

This module is a "CSS Markup Detective", a stand-alone diagnostic CSS stylesheet that can highlight potentially invalid, inaccessible or erroneous HTML(5) markup by adding one class.

![](/files/-MEEtmn3Ufa6MU89eyQ9) *Figure 1: Main view of the cssHolmes Module (Admin side)*

### Download/Fork the Module ![](https://xoops.org/images/forkit.png)

**You can fork the module -->** [**here**](https://github.com/XoopsModules25x/cssholmes)**)**

### How to Contribute

[You can contribute on GitHub](https://github.com/XoopsDocs/cssholmes-tutorial). Changes will be [pushed to Gitbook.io automatically](https://xoops.gitbook.io/cssholmes-tutorial/activity) when the [main repository](https://github.com/XoopsDocs/cssholmes-tutorial) changes.

Editing the book can be done either by updating the markdown files with a text editor, or opening the repository in [the Gitbook desktop app](https://github.com/GitbookIO/editor/blob/master/README.md). The desktop app will give you a live preview option.

## Table of Content

* [Install/Uninstall](/cssholmes-tutorial/1install.md)
* [Administration Menu](/cssholmes-tutorial/2administration.md)
* [Preferences](/cssholmes-tutorial/3preferences.md)
* [Operating Instructions](/cssholmes-tutorial/4operations.md)
* [The User Side](/cssholmes-tutorial/5userside.md)
* [Blocks](/cssholmes-tutorial/6blocks.md)
* [Templates](/cssholmes-tutorial/7templates.md)
* [Miscellaneous](/cssholmes-tutorial/8other.md) 
* [Module Credits](/cssholmes-tutorial/9credits.md)
* [About XOOPS CMS](/cssholmes-tutorial/10aboutxoops.md)

### License:

\
Unless specified, this content is licensed under a [Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License](http://creativecommons.org/licenses/by-nc-sa/4.0/).

All derivative works are to be attributed to XOOPS Project ([www.xoops.org](https://xoops.org))