- From: Felipe Nascimento de Moura <felipenmoura@gmail.com>
- Date: Tue, 1 Mar 2016 10:27:10 -0300
- To: www-style <www-style@w3.org>
- Message-ID: <CAJVBkVnkpk_Ykj4hgELNmHsvaErCG3s+YX8fpy-VXdTRkJ93Ow@mail.gmail.com>
Hello. I have been playing around with css classes and found some situations. If there is already something thought about these, please let me know. ' ' ' css .parent-div { --size: 50px; min-width: var(--size); min-height: var(--size); } .parent-div .child { width: var(--size); } ' ' ' This does not work. But I believe it would make sense if children from the element could use its variable. Or perhaps, it's pseudo elements: ' ' ' css .parent-div { --size: 50px; min-width: var(--size); min-height: var(--size); } .parent-div:after { content: ""; width: var(--size); } ' ' ' By itself, it doesn't look so useful, but when we mix it with ' calc()': ' ' ' css :root { --size: 150px; } .parent { --cur-size: calc(--var(size)/2); /* ... */ } .parent .child { width: --cur-size; } ' ' ' This way, if in a given moment, an element was moved via JavaScript into another element(with appendChild, for example), it would automatically follow the rules for that new place, where it is gone. It would also help keeping things proportional from up to down on the tree. Another interesting use would treat such variables as pseudo-rem. So, if I have a component made of many elements, just by placing it anywhere in the page, I would be able to use that variable, not interfering with other elements outside this component of mine, Let me know what you think about that. Regards. -- *Felipe N. Moura* Senior Web Developer and System Analyst. Website: http://felipenmoura.com Twitter: @felipenmoura <http://twitter.com/felipenmoura> LinkedIn: http://goo.gl/qGmq BrazilJS Conference <http://braziljs.com.br/> | BrazilJS Foundation <http://braziljs.org> --------------------------------- *Changing the world* is the least I expect from myself!
Received on Tuesday, 1 March 2016 13:28:19 UTC