you need to dig into the history of CSS to know this. Such feature is one of the oldest one and there is for sure a discussion somewhere about ... ... <看更多>

這篇要介紹的是position， 顧名思義，它與元素的位置或定位方式有關， ... position 的屬性值有static、relative、absolute、fixed 與sticky。 ... <看更多>

#position: absolute; An element with position: absolute; is positioned relative to the nearest positioned ancestor (instead of positioned relative to the ... ... <看更多>