Move v3 `.hidden` note into Migration docs

diff --git a/docs/components/utilities.md b/docs/components/utilities.md
index 456e44414bb3c9aa5727d4eba79eb4ab4cbee424..4ee1d46f31cb592eade58a5a249f02d87284c4f1 100644 (file)
--- a/docs/components/utilities.md
+++ b/docs/components/utilities.md
@@ -234,7 +234,7 @@ Easily clear `float`s by adding `.clearfix` **to the parent element**. Utilizes
 
 ## Hidden content
 
-Hide any HTML element with the `[hidden]` attribute. Previously, v3.x included a `.hidden` class that forced toggled content. However, we removed it due to conflicts with jQuery's `hide()` function. It's taken from [PureCSS](http://purecss.io). While `[hidden]` isn't natively supported by IE9-10, declaring it `display: none` in our CSS gets around that problem.
+Hide any HTML element with the `[hidden]` attribute. It's taken from [PureCSS](http://purecss.io). While `[hidden]` isn't natively supported by IE9-10, declaring it `display: none` in our CSS gets around that problem.
 
 Furthermore, `.invisible` can be used to toggle the visibility of an element, meaning its `display` is not modified and the element can still affect the flow of the document.
 

diff --git a/docs/migration.md b/docs/migration.md
index c2cc5d4f5c094ec23db50f73f872acd82a0d8c42..6f060c397c6b99666fa7177b67e097e89e7b7587 100644 (file)
--- a/docs/migration.md
+++ b/docs/migration.md
@@ -179,7 +179,7 @@ Note that the changes to the grid breakpoints in v4 means that you'll need to go
 ## Misc notes to prioritize
 
 - Removed the `min--moz-device-pixel-ratio` typo hack for retina media queries
-- Dropped `.hidden` and `.show` because it interferes with jQuery's `$(...).hide()`.
+- Dropped `.hidden` and `.show` because they conflict with jQuery's `$(...).hide()` function.
 - Change buttons' `[disabled]` to `:disabled` as IE9+ supports `:disabled`. However `fieldset[disabled]` is still necessary because [native disabled fieldsets are still buggy in IE11](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/fieldset#Browser_compatibility).
 
 TODO: audit list of stuff in v3 that was marked as deprecated