The basic tags which are necessary.
Example codes and Outputs:

Input:

Tags used:

Font tag.

Input of example:

Output of example:

Attribute

Description

Color

It's easy to change the font color, but is it easy in HTML? *Yes?* Yes Just use "color" attribute to change the size of the text.

Size  

It's easy to change the font size, but is it easy in HTML? *Yes?* Yes Just use "size" attribute to change the size of the text.