css & focus-within & pseudo class

css & focus-within & pseudo class

demo

:focus-within

https://developer.mozilla.org/en-US/docs/Web/CSS/:focus-within

https://caniuse.com/#feat=css-focus-within

pseudo class

https://developer.mozilla.org/en-US/docs/Web/CSS/Pseudo-classes

---

https://css-tricks.com/almanac/selectors/f/focus-within/

https://alligator.io/css/focus-within-pseudo-class/

https://davidwalsh.name/css-focus-within

https://usefulangle.com/post/128/css-focus-within

https://dev.to/laurieontech/focus-vs-focus-within-3748

---

---

©xgqfrms 2012-2020

www.cnblogs.com 发布文章使用：只允许注册用户才可以访问！

---