Do you know?

Question

-inside html -
<p hmm="hmm">learning html and css</p>
- inside stylesheet -
P[hmm] {
/* styling "/
}
It's works! Even though it's not official attribute so what is use of it?

Answer 1

that's not strictly valid...

however, html is a very permissve language, so even if it's not valid, in most browsers it will work, but you cannot be sure it will be working in all browsers and in future ;P

if you want to safely use valid custom attributes, you must rely on 'data-' syntax (using 'dataset' through js to access them): there will be guaranted to work on all browsers at any time, and staying valid html source ^^

Answer 2

There are many plugins that you can use it as attribute inside html tag so html give you an option to write anything inside it's tag, but hmm="hmm" means nothing

Answer 3

Jamal have you ever used custom attribute? I m not talking about "data-" But any custom attribute? For may be... JavaScript purpose? If yes! Is it valid? And all Browsers support it?

Answer 4

Pls can u help me with html code to create download space