Ночной режим / Night mode

EXT CSS Panel is a special module for Joomla CMS that allows the site administrator to install the required HTML code in the pop up window (side panel).

EXT CSS Panel

With this extension you can add any HTML code – it may be images with a link to the website, and certain tags, it all depends on your imagination.

Advantages:

Support for the latest versions of Joomla.
HTML code without filtering tags.
Defining and customizing images from the admin panel.
Set the height and width of the block.
Russian language support.
Margins top and sides.
The ability to install the module ID for multiple use on one page.