The position property specifies the type of positioning method used for an element.
Elements are then positioned using the top, bottom, left, and right properties. However, these properties will not work unless the position property is set first. They also work differently depending on the position value.
An element with position: static; is not positioned in any special way; it is always positioned according to the normal flow of the page:
An element with position: static; is not positioned in any special way; it is always positioned according to the normal flow of the page:
An element with position: relative; is positioned relative to its normal position.
Setting the top, right, bottom, and left properties of a relatively-positioned element will cause it to be adjusted away from its normal position. Other content will not be adjusted to fit into any gap left by the element
An element with position: fixed; is positioned relative to the viewport, which means it always stays in the same place even if the page is scrolled. The top, right, bottom, and left properties are used to position the element.
A fixed element does not leave a gap in the page where it would normally have been located.
An element with position: absolute; is positioned relative to the nearest positioned ancestor (instead of positioned relative to the viewport, like fixed).
However; if an absolute positioned element has no positioned ancestors, it uses the document body, and moves along with page scrolling.
Note: A "positioned" element is one whose position is anything except static.
The display property specifies the type of box used for an HTML element.
https://www.w3schools.com/cssref/pr_class_display.asp
The visibility property specifies whether or not an element is visible.