An attribute value must be quoted if it contains any character other than letters (A-Za-z), digits, hyphens, and periods; use quotes if in doubt.
NONE in the “value” field below means that one can use the attribute without a value.
<a></a>
purpose of this command is: anchor, for links and labels
<img>
purpose of this command is: inline image
<br></br>
purpose of this command is: line break
<p></p>
purpose of this command is: new paragraph
<center>
purpose of this command is: to center the paragraph or word
<font></font>
purpose of this command is: purpose: change font size, color, type etc.