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CSS

Posted by Mani Saini
Mani Saini
3,101 Points

Difference between ID and Class

Could somebody please explain why class was used here and not ID : <section>
<img src = "img/me.jpg" alt = "Photograph of Mani Saini" class = "profile-photo"> </section>

It would have done the same work?

1 Answer

Michael Hulet
Michael Hulet
47,913 Points
Michael Hulet
Michael Hulet
47,913 Points

An id is meant to be unique, whereas a class is meant to be applied to any number of nodes

Mani Saini
Mani Saini
3,101 Points

Thanks Michael but i still didn't get why class was used? That pic is only used once anyways so it could be used with an ID ?

Michael Hulet
Michael Hulet
47,913 Points

I'm not sure what video/challenge this was used in, so I don't know the context, but my guess is that it was either intended to be used again on another node, or it was just a design decision by the programmer. If a tag is only going to be used once, id and class are effectively interchangeable. You just reference them differently in CSS and JavaScript