diff options
| author | Bradley Taunt <bt@btxx.org> | 2024-05-25 16:14:03 -0400 |
|---|---|---|
| committer | Bradley Taunt <bt@btxx.org> | 2024-05-25 16:16:54 -0400 |
| commit | e417a818e207a6cca6e2f3c471611673ab836a62 (patch) | |
| tree | 664686a365c3d1e73349b5a667fa892f46445fef /_posts/2018-12-19-jsincss-parent-selector.md | |
Initial commit for Jekyll testing and conversion, updated
Diffstat (limited to '_posts/2018-12-19-jsincss-parent-selector.md')
| -rw-r--r-- | _posts/2018-12-19-jsincss-parent-selector.md | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/_posts/2018-12-19-jsincss-parent-selector.md b/_posts/2018-12-19-jsincss-parent-selector.md new file mode 100644 index 0000000..f7244ba --- /dev/null +++ b/_posts/2018-12-19-jsincss-parent-selector.md @@ -0,0 +1,80 @@ +--- +layout: post +title: "Using Parent Selectors in CSS" +date: 2018-12-19 +--- + + +I recently saw a Twitter thread posted by <a href="https://twitter.com/innovati/status/1068998114491678720">Tommy Hodgins</a> on implementing highly requested styling features in CSS with only a minimal amount of JavaScript. Many of his examples are great, but the `parent` selector instantly peaked my interest. + +Being able to target an element's parent always becomes a minor annoyance (since vanilla CSS does not support it) - so you always end up having to do something a little ugly like: + + + var el = document.getElementById('custom-div'); + var parent = el.closest(selectors); + + +And then add any custom styling to the parent element directly in JavaScript - or toggle a class which opens a whole other can of worms. + +## Save the day with <a href="https://www.npmjs.com/package/jsincss-parent-selector">jsincss-parent-selector</a> and <a href="https://github.com/tomhodgins/qaffeine">qaffeine</a> + +By using the `jsincss-parent-selector` and `qaffeine` plugins we can target an element's parent in CSS without breaking a sweat. Let's break it down: + +### Import the packages + + + npm install jsincss-parent-selector qaffeine + + +### HTML (ex. index.html) + +Now we add our very simple HTML skeleton: + + + <!doctype html> + <html> + <head> + <link rel="stylesheet" href="output.css"> + </head> + <body> + <header> + <main> + <h2>This is a header</h2> + </main> + </header> + </body> + <script src=output.js></script> + </html> + + +### JavaScript (ex. input.js) + + + const qaffeine = require('qaffeine') + const parent = require('jsincss-parent-selector') + + qaffeine( + { + stylesheet: {}, + rules: { + parent + } + }, + 'input.css', + 'output.js', + 'output.css' + ) + + +### CSS (ex. input.css) + + + header { + display: block; + } + main[--js-parent] { + background: blue; + } + + +Then simply run `node` against your `js` file. That's it! I would also suggest checking out Tommy's <a href="https://www.youtube.com/watch?v=rG8cLe7VbW0">video covering this topic</a> if you prefer to follow along. |