Position-type: Used to determine the type of positioning, total absolute (absolute), relative (relative), and static 3 options.
Z-index-z axis: Used to control the stacking order of block elements in a Web page, you can set overlapping effects on elements. The parameter value of this property uses a pure integer with a value of 0 o'clock, and the element is at the lowest level for an absolutely positioned or relatively positioned element.
Visibility-Show: Use this property to hide the elements in a Web page, with a total of 3 choices such as inheritance (Inherit, the visual setting for inheriting mother features), visible (visible), and hidden (hidden).
Overflow-overflow: After determining the height and width of an element, if the area of the element does not display the contents of the element in its entirety, the attribute is made one day when the monk hit the clock. There are 4 options such as visible (visible, enlarging the area to show everything), hiding (hidden, hiding out-of-scope content), scrolling (scroll, displaying a scrollbar on the right side of the element), and auto (auto, which displays scrollbars when the content exceeds the element area).
Positioning, when an absolute anchor type is determined for an element, the Group property determines where the element is located in the Web page. The Group property contains 4 sub-attributes, "left" (the property is named "Ieft", controls the start position to the left of the element), "Top" (the property is named "Top", the starting position above the control element), "wide" or "high" (the same as the properties of "width" or "high" in the Box class properties
Clip-Clips: When an element is specified as an absolute anchor type, this property can cut the element area into various shapes, but currently provides only a square one. The property value is rect (top right bottom left), which is: rect (top right bottom left), and the unit of the property value is any one length unit.
CSS Absolute Positioning properties