HTML or CSS -- clarification needed

Hello all,

Got a sudden doubt on what is valid HTML and what is CSS.
Hope I got the correct list for this.

If I were to write
/
<h1><font color="red"><center>Birkbeck College</center></font> </h1>

as

/

<h1 style="text-align: center; color: red">Birkbeck College</h1>

I am still writing good HTML, am I not?

Is it not the case that the latter is more compliant with modernising efforts of *HTML* or am I getting confused with CSS which is sepearte so the latter is HTML and CSS.


I am not subscribed to the lsi.

Would appreciate a reply to me too.

Thanks in advance,

Ramanan