The background-clip CSS property sets whether an element's background extends underneath its border box, padding box, or content box.

border-box
The background extends to the outside edge of the border (but underneath the border in z-ordering).
padding-box
The background extends to the outside edge of the padding. No background is drawn beneath the border
content-box
The background is painted within (clipped to) the content box.
If the length of background-clip is less than background-image, the first clip value will effect on all remained background-image.
| Initial value | border-box |
| Applies to | all elements |
| Inherited | no |
| Animatable | no |
Only support border-box、padding-box