Enhance button-variant mixin to accept disable styles · Issue #26737 · twbs/bootstrap · GitHub
evergreen-buttons outline · Issue #10 · segmentio/evergreen · GitHub
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How to remove the blue border/outline in Chrome & Safari, and dotted line in Firefox & Edge without effin' up the UX | by Ricardo Zea | Medium
Remove blue border from css custom-styled button in Chrome - Stack Overflow
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outline-none doesn't work on button with focus in chrome · Issue #1231 · tailwindlabs/tailwindcss · GitHub
CSS Disable Button
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