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Show alert mock up in high contrast mode

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The mock up component, shown in all
current/past/rejected alert pages, doesn't show
fully in high contrast modes because it uses its
background colour to show its shape and
backgrounds are hidden in high contrast modes.

This uses a technique from design system which
adds a transparent border to these elements to
show their shapes. This works because borders of
any colour (even transparent) are rendered as the
foreground colour.
This commit is contained in:
Tom Byers
2021-10-19 15:14:04 +01:00
parent ccebae6c75
commit d915beef89
1 changed files with 5 additions and 3 deletions
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8
app/assets/stylesheets/components/broadcast-message.scss
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@@ -6,6 +6,7 @@
max-width: 464px;
box-sizing: border-box;
padding: govuk-spacing(9) govuk-spacing(3) govuk-spacing(3) govuk-spacing(3);
border: solid 1px transparent; // to show it's area in high contrast mode
background: $panel-colour;
box-shadow: inset 0 -1px 0 0 rgba(0, 0, 0, 0.05);
border-radius: 5px;
@@ -18,10 +19,11 @@
&-heading {
display: block;
position: absolute;
top: 0;
left: 0;
top: -1px;
left: -1px;
padding: govuk-spacing(2) + 1px govuk-spacing(3) (govuk-spacing(2) - 1px) 46px;
width: 100%;
border: solid 1px transparent; // to show it's area in high contrast mode
width: calc(100% + 2px); // grow to overlap wrapper's border (when combined with top and left)
box-sizing: border-box;
font-weight: bold;
background: $grey-1 file-url('exclamation.svg');