The <font> tag is supported in all major browsers, however it is deprecated since HTML 4... so it should not be used. Learn more at w3schools.com.
<font>Some text</font>
Figure: Bad example - Using deprecated HTML <font> tag
<p>My brother has <span style="color:blue">blue</span> eyes.</p>
Figure: Good example - Using <p> for texts and <span> for texts' variations
Tip: The best practice is to CSS classes to define the font family, size, and color.
We have a program called SSW CodeAuditor to check for this rule.