Que sginifica <h1>,<h2>,<h3>

que sifnifica las h.Soy principiante

they are very important, for both a proper layout and search engines. It would be really dull if all your text had the same size and shape

Son los tags donde se escriben los titulos, me parece que se pueden escribir hasta 6 titulos (

, no lo se muy bien, pero en el boton glosario aperece info con respecto a esa te,a

i do not understand, what do you mean?

This is the info in the glossary section


Heading elements like



, … allow you to use six levels of document headings, ranging from largest to smallest, breaking up the document into logical sections.

I was trying to explaing that