Does the <basefont> tag exist and what is its function?

The <basefont> tag existed in HTML 4 but was deprecated in HTML 5.

Its function was to define the basic font parameters for the entire document or a part of it, until these parameters were overridden by other elements, such as the <font> tag or CSS.

The main attributes of <basefont> included:

Attribute	Description
color	Text color
face	Font name
size	Base font size (from 1 to 7)

Example of usage in HTML 4:

<!-- This tag is deprecated in HTML5 -->
<basefont face="Arial, Helvetica, sans-serif" size="4" color="#333">

In modern web development, these styles are defined using CSS for better separation of structure and presentation.

Example using CSS:

/* Defining the base font for the entire document */
body {
  font-family: "Arial", "Helvetica", sans-serif;
  font-size: 1em; /* use relative units for size */
  color: #333;
}