What is a Content Management System?
A content management system, such as Joomla!, is software that allows you to create and manage webpages easily by separating the creation of your content from the mechanics required to present it on the web.
Within the site, content is stored in a database. The look and feel of the site is created by a template. Joomla! brings together the template and your site content to compose web pages which the server then sends to a client browser.
Creating an article
Content is generally presented as articles. To create an article, you need to add a title, put text and images in the content area, and set the status to "published".
Template, site settings, and modules
The look and feel of a Joomla! site is controlled by a template. You can change the background color, highlight color and more by editing the template settings.
Regions surrounding the main content on a displayed page are called "modules". You can modify modules on the current page by moving your cursor to the module and clicking the edit link.
Advanced options for templates, site settings, modules, and more are available in the site administrator.
Site and Administrator
A Joomla! web site actually has two separate views. The "site" (also called the front end) is what visitors to the web site actually see. The "administrator" (also called the back end) is only used by people who manage the site. You can access the latter by adding "administrator" to the end of the domain name (tff-online.net/administrator). Access requires logging in with an approved user name and password.
NOTE: To obtain my desired web site display, I modified a copy of the Joomla! Protostar template. Using the copied template.css, I changed line 5622 @media (max-width: 979px) to @media (max-width: 360px) in order to prevent premature replacement of menu items with only a menu icon. Also I added a tff.css file to the template CSS folder in order to implement various additional CSS modifications, such as the hover behavior seen by mousing over the links shown below.