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Q&A What class attributes can we (usefully) use in HTML tags?

Here's the list of supported tags and attributes, pulled straight from the current code: self.tags = %w[a p span b i em strong hr h1 h2 h3 h4 h5 h6 blockquote img strike del code p...

posted 9mo ago by ArtOfCode‭  ·  edited 9mo ago by ArtOfCode‭

Answer
#2: Post edited by user avatar ArtOfCode‭ · 2023-08-05T11:13:50Z (9 months ago)
  • Here's the list of supported tags and attributes, pulled straight from the current code:
  • ```ruby
  • self.tags = %w[a p span b i em strong hr h1 h2 h3 h4 h5 h6 blockquote img strike
  • del code pre br ul ol li sup sub section details summary ins table
  • thead tbody tr th td s]
  • self.attributes = %w[id class href title src height width alt rowspan colspan lang
  • start dir]
  • ```
  • To a careful reader, that might imply there are no restrictions on _what_ classes you can use, because the `class` attribute is blanket allowed.
  • As you've noticed, that means you can make use of the Codidact & [Co-Design](https://design.codidact.org) CSS and do some nifty things in your posts.
  • With great power comes great responsibility - while it's a very nice thing to have, it's very powerful and can be misused. If that starts happening we'll have to remove it.
  • Here's the list of supported tags and attributes, pulled straight from the current code:
  • ```ruby
  • self.tags = %w[a p span b i em strong hr h1 h2 h3 h4 h5 h6 blockquote img strike
  • del code pre br ul ol li sup sub section details summary ins table
  • thead tbody tr th td s]
  • self.attributes = %w[id class href title src height width alt rowspan colspan lang
  • start dir]
  • ```
  • To a careful reader, that might imply there are no restrictions on _what_ classes you can use, because the `class` attribute is blanket allowed.
  • As you've noticed, that means you can make use of the Codidact & [Co-Design](https://design.codidact.org) CSS and do some nifty things in your posts. <i class="fas fa-glass-cheers"></i>
  • With great power comes great responsibility - while it's a very nice thing to have, it's very powerful and can be misused. If that starts happening we'll have to remove it.
#1: Initial revision by user avatar ArtOfCode‭ · 2023-08-04T16:23:10Z (9 months ago)
Here's the list of supported tags and attributes, pulled straight from the current code:

```ruby
self.tags = %w[a p span b i em strong hr h1 h2 h3 h4 h5 h6 blockquote img strike
               del code pre br ul ol li sup sub section details summary ins table
               thead tbody tr th td s]
self.attributes = %w[id class href title src height width alt rowspan colspan lang
                     start dir]
```

To a careful reader, that might imply there are no restrictions on _what_ classes you can use, because the `class` attribute is blanket allowed.

As you've noticed, that means you can make use of the Codidact & [Co-Design](https://design.codidact.org) CSS and do some nifty things in your posts.

With great power comes great responsibility - while it's a very nice thing to have, it's very powerful and can be misused. If that starts happening we'll have to remove it.