:checked - CSS: Cascading Style Sheets | MDN - MDN Web Docs
https://developer.mozilla.org/en-US/docs/Web/CSS/:checked
The :checked CSS pseudo-class selector represents any radio (<input type="radio">), checkbox (<input type="checkbox">), or option (<option> in a <select>) element that is checked or toggled to an on state.
The :checked CSS pseudo-class selector represents any radio (<input type="radio">), checkbox (<input type="checkbox">), or option (<option> in a <select>) element that is checked or toggled to an on state.
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