HTML

sub html

 <!-- Terto superior -->
<sup>Texto arrriba</sup>

 <!-- Texto inferior -->
<sub>Texto abajo</sub>

subscript html

<!--use the sub tag-->
<p>This text contains <sub>subscript</sub> text.</p>

subscript in html

<p><sub>This is subscript</sub>

HTML _Element

<p>This is <sub>subscripted</sub> text.</p>