Prevent date inputs shifting alignment on iOS 18 #6454
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Stylesheets changes to npm packagediff --git a/packages/govuk-frontend/dist/govuk/govuk-frontend.min.css b/packages/govuk-frontend/dist/govuk/govuk-frontend.min.css
index 741b02be4..2f6332e72 100644
--- a/packages/govuk-frontend/dist/govuk/govuk-frontend.min.css
+++ b/packages/govuk-frontend/dist/govuk/govuk-frontend.min.css
@@ -2700,7 +2700,8 @@ screen and (forced-colors:active) {
.govuk-date-input__item {
display: inline-block;
margin-right: 20px;
- margin-bottom: 0
+ margin-bottom: 0;
+ vertical-align: bottom
}
.govuk-date-input__label {
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Other changes to npm packagediff --git a/packages/govuk-frontend/dist/govuk/components/date-input/_index.scss b/packages/govuk-frontend/dist/govuk/components/date-input/_index.scss
index 43d1bc7c6..38c670858 100644
--- a/packages/govuk-frontend/dist/govuk/components/date-input/_index.scss
+++ b/packages/govuk-frontend/dist/govuk/components/date-input/_index.scss
@@ -14,6 +14,11 @@
display: inline-block;
margin-right: govuk-spacing(4);
margin-bottom: 0;
+
+ // Prevents an issue in iOS Safari 18 where the items vertically
+ // shift when the value of inputs is changed.
+ // https://github.com/alphagov/reported-bugs/issues/90
+ vertical-align: bottom;
}
.govuk-date-input__label {
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Thanks @querkmachine I've snagged this (co-author credit) for NHS.UK frontend too Much appreciated |
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Not sure why the Heroku deployment is failing. Investigating... Edit: Info here - #6455 |
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Finally got a chance to look at this on an actual device, the bug is fixed! Nice one 🙌🏻
Due to an upstream issue in Safari on iOS 18 (and potentially 17), the box model calculations for these inputs go iffy when the value is deleted and re-typed. The upstream issue was reported during the beta period of iOS 26 and fixed in the release of iOS 26 in September, however no fix for older versions seems to be coming, so we should prevent the issue in our own code in the meantime. NHS.UK Frontend issue: nhsuk/nhsuk-frontend#1227 Our bug report: alphagov/reported-bugs#90
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Due to an upstream issue in Safari on iOS 18 (and potentially iOS 17), the box model calculations for children of the Date input component go a bit wrong when an input's value is deleted and re-typed.
The issue was reported to the WebKit team during the beta period of iOS 26 and fixed before the final release of iOS 26 in September, however no fix for older versions of iOS has yet happened nor appears to be coming, so we should prevent the issue in our own code until iOS 18 has fallen out of browsers we support.
The specific fix is the one suggested by @colinrotherham in the NHS.UK Frontend issue: nhsuk/nhsuk-frontend#1227 (comment)
Closes #5861.
Changes
vertical-alignrule to items within the Date input component.