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fix(radio): missing focus indication in high contrast mode #13280

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fix(radio): missing focus indication in high contrast mode #13280

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10 changes: 10 additions & 0 deletions src/material/radio/radio.scss
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Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,16 @@ $mat-radio-ripple-radius: 20px;
._mat-animation-noopable & {
transition: none;
}

// Note that this creates a square box around the circle, however it's consistent with
// how IE/Edge treat native radio buttons in high contrast mode. We can't turn the border
// into a dotted one, because it's too thick which causes the circles to look off.
@include cdk-high-contrast {
.mat-radio-button.cdk-keyboard-focused & {
outline: dotted 1px;
}
}

}

// The inner circle for the radio, shown when checked.
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