DDOO.B.LAB

position: position: absolute;스크롤링하면 따라서 올라감. position: fixed;스크롤링해도 설정한 이미지는 화면 내 설정한 위치에 고정된다. z-index: float: float: left;float: right;clear:left — the left side of the element will not touch any other element within the same containing element.right — the right side of the element will not touch any other element within the same containing element.both — neither side of the element will touch..