移動端一像素邊框最後一個商品不需要邊框

.food-item 
 	display: flex
	7margin: 18px
	padding-bottom: 18px
	border-1px(rgba(7, 17, 27, 0.1))
	&:last-child
		border-none()
		margin-bottom: 0

border-1px($color)
	position: relative
	&:after
		display: block
		position: absolute
		left: 0
		bottom: 0
		width: 100%
		border-top: 1px solod $color
		content: ''
border-none()
	&:after
		display: none