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fix(checkbox): no focus indicator in high contrast #13255

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8 changes: 8 additions & 0 deletions src/lib/checkbox/checkbox.scss
Original file line number Diff line number Diff line change
Expand Up @@ -240,6 +240,14 @@ $_mat-checkbox-mark-stroke-size: 2 / 15 * $mat-checkbox-size !default;
._mat-animation-noopable & {
transition: none;
}

@include cdk-high-contrast {
// Note that we change the border style of the checkbox frame to dotted because this
// is how IE/Edge similarly treats native checkboxes in high contrast mode.
.mat-checkbox.cdk-keyboard-focused & {
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Might be worth mentioning here that this is how IE handles it for the native checkbox.

border-style: dotted;
}
}
}

.mat-checkbox-background {
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