Skip to content


Repository files navigation

Custom Opt-Out Styles Piwik / Matomo Plugin


You no longer need this plugin to change the CSS Styles in your opt-out. All features this plugin provides can be found in the Matomo core features. This plugin will be keep available to not break any websites using this plugin.


Adds a new admin tab allowing to change the opt-out CSS Styles for each website.


  1. Click on the "Settings" link located in the top menu on the right

  2. Click on the "Custom Opt-Out" tab located in the "Settings" section of the sidebar on the left

  3. Enter your customized CSS code into the textarea input field called "Custom Css" e.g.

  body {
    font-family: Arial, Verdana, sans-serif;
    font-size: 12px;
    color: #ddd;
    line-height: 160%;
    margin: 10px;
    padding: 0;

or insert a URL to the file containing your custom CSS into the input field called "External CSS File" e.g.

  1. Click the "Save" button.

  2. Use the iframe code provided below the input fields to add the Piwiki Opt-Out to your website.


  • Matomo >=5.0.0-b1


Jens Averkamp

Sven Motz


Please direct any feedback to

Copyright and license

Released under the GPL v3 (or later) license, see