# Ajouter un ID ou une CLASS à une image (dans un message)
**URL:** https://meta.discourse.org/t/add-an-id-or-class-to-an-image-within-a-post/114740
**Category:** Support
**Created:** [Avril 11, 2019, 9:22 UTC](https://meta.discourse.org/t/add-an-id-or-class-to-an-image-within-a-post/114740 "2019-04-11T09:22:53Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@DigitalStartup](https://meta.discourse.org/u/DigitalStartup)
#### Post date: [Avril 11, 2019, 9:22 UTC](https://meta.discourse.org/t/add-an-id-or-class-to-an-image-within-a-post/114740/1 "2019-04-11T09:22:53Z")
My goal is to add some banners to Not Logged In Users within a post. The CSS works great, but I can’t apply it to any images within the post.
Is there currently a way to add an ID or CLASS to an image (within a post)? So far I have tried:
```
```
And I’ve tried putting in raw HTML
```
```
Both methods result in the ID or CLASS being stripped out of the actual rendering of the page.
---
### Author:  [@Johani](https://meta.discourse.org/u/Johani)
#### Post date: [Avril 11, 2019, 9:32 UTC](https://meta.discourse.org/t/add-an-id-or-class-to-an-image-within-a-post/114740/2 "2019-04-11T09:32:41Z")
You can’t by default. There’s only a few attributes that are whitelisted for `![]()
` tags. You can find those here:
[https://github.com/discourse/discourse/blob/master/app/assets/javascripts/pretty-text/white-lister.js.es6#L170-L173](https://github.com/discourse/discourse/blob/master/app/assets/javascripts/pretty-text/white-lister.js.es6#L170-L173)
Whitelisting specific classes can be done but would require a plugin.
How often do you plan on using this? You might be able to make something work with a theme component but the implementation will depend on your use case. Can you share a specific example of what you’re trying to do?
for example, you can wrap the image in something like
```plaintext
```
then you can use the selector
```plaintext
[data-theme-banners] img
```
---
### Author:  [@DigitalStartup](https://meta.discourse.org/u/DigitalStartup)
#### Post date: [Avril 11, 2019, 9:53 UTC](https://meta.discourse.org/t/add-an-id-or-class-to-an-image-within-a-post/114740/3 "2019-04-11T09:53:17Z")
So, it looks like the ID is being stripped out my DIV as well.
```plaintext
```
This was the end goal I was attempting. Which is done. I just don’t want it to appear to logged in users, which is where I was relying on the CSS
---
### Author:  [@Johani](https://meta.discourse.org/u/Johani)
#### Post date: [Avril 11, 2019, 10:58 UTC](https://meta.discourse.org/t/add-an-id-or-class-to-an-image-within-a-post/114740/4 "2019-04-11T10:58:08Z")
> [@DigitalStartup](#):
>
> it looks like the ID is being stripped out my DIV as well.
Correct, `` tags also have very specific properties that are whitelisted. Those can be found here:
[https://github.com/discourse/discourse/blob/master/app/assets/javascripts/pretty-text/white-lister.js.es6#L141-L152](https://github.com/discourse/discourse/blob/master/app/assets/javascripts/pretty-text/white-lister.js.es6#L141-L152)
That file - it is the same one from my earlier post - contains all the whitelisted markup allowed in the composer so have a look around to see what is allowed. Anything not on that list will be stripped out to prevent abuse.
> [@DigitalStartup](#):
>
> I just don’t want it to appear to logged in users
The `` tag has a CSS class added to it to when the user is not logged in. That class is `anon`. You can use that class to selectively show the banners. So something like this in your post:
```plaintext
```
and this in your theme
```plaintext
html:not(.anon) .cooked [data-theme-banners] {
display: none;
}
```
and that would ensure that the element is only visible to users who are not logged in.
---
### Author:  [@DigitalStartup](https://meta.discourse.org/u/DigitalStartup)
#### Post date: [Avril 11, 2019, 11:04 UTC](https://meta.discourse.org/t/add-an-id-or-class-to-an-image-within-a-post/114740/5 "2019-04-11T11:04:01Z")
Sir, you are a legend.
---
### Author:  [@system](https://meta.discourse.org/u/system)
#### Post date: [Mai 11, 2019, 11:11 UTC](https://meta.discourse.org/t/add-an-id-or-class-to-an-image-within-a-post/114740/6 "2019-05-11T11:11:32Z")
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