headings comments

exist 6 types of headers in HTML define with a 'h' and a number 1 to 6 and have to be close with the same number value <h1>header</h1>, the commentary use this syntax <!--commentary-->.

u can use both <!-- comments--> or /* comment*/ for comments :)

thkx

oh, now i know, comment not only use <!-- cmmnt -->. thnx for dat info. but isn't /*___*/ are css code?

I can't understand

Why can't I access my coding background? This particular ads keep showing up anytime I attempt to use the background

Heading tags h1 to h6 or every tag if inside comment tag no readable with browser