minlength attribute.<br>
This attribute applies to <code><a href="http://whatwg.org/specs/web-forms/current-work/#text">text</a></code>,
     <code><a href="http://whatwg.org/specs/web-forms/current-work/#password">password</a></code>, <code><a href="http://whatwg.org/specs/web-forms/current-work/#url">url</a></code>, and <code><a href="http://whatwg.org/specs/web-forms/current-work/#email">
email</a></code>
     input types, and <code>textarea</code> elements.<br>
<br>
For text input controls it specifies the minimum length of the input,
     in terms of numbers of code points<br clear="all"><br>-- <br>Carlos sanabria<br>Ingeniero de Sistemas