HTML chk1 chk2 chk3 chk4 radio1 radio2 radio3 radio4 CSS input[type="checkbox"], input[type="radio"] { display: block; position: absolute; top: 0; left: 0; width: 100%; height: 100%; margin: 0; padding: 0; -webkit-appearance: none; -webkit-border-radius: 0; outline: none; } .list-btn { list-style: none; display: flex; flex-wrap: wrap; margin: -0.375rem -0.1875rem; } .list-btn > li { position: re..