Is it possible to style tables in a post individually? Discourse removes all styling elements from HTML in a post.

If you’re on a recent version of Discourse - as this is a recent change - you can also use data-theme attributes. For example: Col A Col B Col C A1 B1 C1 Or with markdown | Col A | Col B | Col C| |---|---|---| | A1 | B1 | C1 | Would look like this: Col A Col B Col C A1 B1 C1 No difference visually - but can be targeted with CSS like this: [data-theme-table="fixed"] table { background: red; } The result is a red background for tables inside divs with the attribute data-theme-table="fixed" but no effect on other tables. [Capture18] So all you need to do is define the CSS once and then use the attributes in posts where you want the styles to apply.

Can you share a screenshot of what you want to do? In discourse you can do pretty much anything you want, but it gets harder the more crazy the idea is

I simply want some tables to have a fixed layout, and some auto layout. I’m referring to tables created with Markdown, BBCode or HTML in composer.

If you can’t target them by id or class, by position? eg. instead of main-st → smith, main-st → second-house What I generally do is go up the DOM until I find an ancestor element with an id, or in lieu of that a few elements with classes, and then go to the child element I want to target. If need be, a “first”, “last” or “nth” pseudo-class should do the job. [image] Pseudo-classes - CSS | MDN A CSS pseudo-class is a keyword added to a selector that lets you select elements based on information that lies outside of the document tree, such as a specific state of the selected element(s). For example, the pseudo-class :hover can be used to...

I think you mean modifying CSS from the admin panel. What I’m asking is formatting in the composer window.

You will need to write a plugin that exposes the classes you want to allow users to use to format their tables. Once you do that, they can apply the classes to their posts.

looking at white-lister.js.es6, I notice: 'div[data-*]', /* This may seem a bit much but polls does it anyway and this is needed for themes, special code in sanitizer handles data-* nothing exists for data-theme-* and we don't want to slow sanitize for this case */ does it mean that div[data-theme-*] is no longer required and we can simply use div[data-*] (e.g. div[data-table-layout])?

Yes, but I’d say to stick with the -theme- prefix for stuff that’s actually handled by a theme.

Yes, you’re correct @BlackKnob, you can use div[data-*] like div[data-table-layout] and it would have the same effect. However, like @riking said earlier, you’re much better off sticking with div[data-theme-*] since there might be some work in the future to narrow down whitelisted attributes to div[data-theme-*]. When that happens, all of your posts with div[data-*] would need to be updated accordingly. That’s why using div[data-theme-*] is recommended here, so that you can stay futureproof.

Where do I put the CSS to target the named div I’ve wrapped around the table? Do I need to create and install a custom theme to be able to use this method of table styling?

CSS for individual tables in a post

Development

BlackKnob May 14, 2018, 5:28am 8

This is exactly what I was looking for. Thank you @Johani

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CSS for individual tables in a post

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