1. 요소의 indeterminate 상태 :indeterminate - CSS: Cascading Style Sheets | MDNThe :indeterminate CSS pseudo-class represents any form element whose state is indeterminate, such as checkboxes that have been set to an indeterminate state with JavaScript, radio buttons which are members of a group in which all radio buttons are uncheckdeveloper.mozilla.org 체크박스 그룹이 있을 때 한 개 이상의 아이템에 체크가 되었을 때 Check al..
