利用 SCSS 變數來設定背景顏色可以省去不少力氣,別再做個傻傻的碼農了^^ HTML: <div>AAAAA</div> <div>AAAAA</div> <div>AAAAA</div> <div>AAAAA</div> <div>AAAAA</div> SCSS: $colors : (1: #664454, 2: yellow, 3: #00ff75, 4: #985544, 5: #665566); @for $i from 1 through 5 { div:nth-child(#{$i}){ text-align: center; background-color: map-get ( $colors , $i); } }