created: 20170124132500000
modified: 201804111739
tags: example-test [[How to apply custom styles]]
title: Custom styles by data-tags
type: text/vnd.tiddlywiki

! Attribute: data-tags

<<.from-version "5.1.16">>

The ~TiddlyWiki core adds several `attributes` to the rendered content. With those attributes it's possible to apply custom styles to the tiddler content. 

For example this tiddler is tagged: <<tag "How to apply custom styles">> and <<tag "example-test">> so the attribute looks like this: 

```
data-tags="[[How to apply custom styles]] example-test"
```

''Important:'' Tiddler tags are ''not'' sorted, so the order in the rendered output may be different!

!! Examples

The following CSS is defined in [[Custom data-styles]] and creates a pink border for exactly this tiddler.

```
[data-tags*="example-test"] {
  border: 2px solid pink;
}
```

!!! Styling Stylesheets

So to display tiddlers tagged: `data-tags-styles` in a decent way we can use the following code. (I could have used: `$:/tags/Stylesheet`, but that would affect all stylesheets in this wiki, which is not intended. amt ;)

''Important:'' Don't forget the `.tc.tiddler.body`, otherwise the whole tiddler, including the title will be changed! see: [[Custom data-styles]]

```
[data-tags*="data-tags-styles"] .tc-tiddler-body {
  display: block;
  padding: 14px;
  margin-top: 1em;
  margin-bottom: 1em;
  word-break: normal;
  word-wrap: break-word;
  white-space: pre-wrap;
  background-color: #f5f5f5;
  border: 1px solid #cccccc;
  padding: 0 3px 2px;
  border-radius: 3px;
  font-family: Monaco, Consolas, "Lucida Console", "DejaVu Sans Mono", monospace;
}
```

!! Hard Linebreaks

This mechanism may be handy for users, who want to write prose text! see: [[Hard Linebreaks with CSS]]

!! More Possibilities

{{Attribute Selectors}}
