Force-assigns a typed style to a string even if its type would not normally .
Force-assigns a typed style to a string even if its type would not normally .allow it
The background extends to the outside edge of the border (but underneath the border in z-ordering).
The background extends to the outside edge of the border (but underneath the border in z-ordering).
MDN
The background is painted within (clipped to) the content box.
The background is painted within (clipped to) the content box.
MDN
The name of this style in CSS, normally dash-separated
The name of this style in CSS, normally dash-separated
The name of this style from Javascript, normally camel-case
The name of this style from Javascript, normally camel-case
No background is drawn below the border (background extends to the outside edge of the padding).
No background is drawn below the border (background extends to the outside edge of the padding).
MDN
The background-clip CSS property specifies whether an element's background, either the color or image, extends underneath its border.
If there is no background image, this property has only visual effect when the border has transparent regions (because of border-style) or partially opaque regions; otherwise the border covers up the difference.
MDN