_forms.scss: Copy over iOS <input> type compatibility note from v3

Refs b6e6a05b951aac3fad30da441c765dbb86518644
We ought to re-check this for iOS 9.1 at some point...

[skip sauce]
[skip validator]

diff --git a/scss/_forms.scss b/scss/_forms.scss
index df288633893f11ff3fec36d450fb92cc0ff12fc4..3138c7af0cd55a66bc93d00a46f4ad62c0792221 100644 (file)
--- a/scss/_forms.scss
+++ b/scss/_forms.scss
@@ -89,6 +89,8 @@
 // text within the input to become vertically misaligned. As a workaround, we
 // set a pixel line-height that matches the given height of the input, but only
 // for Safari. See https://bugs.webkit.org/show_bug.cgi?id=139848
+//
+// Note that as of 8.3, iOS doesn't support `datetime` or `week`.
 
 @media screen and (-webkit-min-device-pixel-ratio: 0) {
   input[type="date"],