CSS border-image-outset; Place the border image 10 pixels outside the border edges of an element:
Definition and Usage
The border-image-outset property specifies the amount by which the border image area extends beyond the border box.
Tip: Also look at the border-image property (a shorthand property for setting all the border-image-* properties).
|Animatable:||no. Read about animatable|
Note: The border-image-outset property can take from one to four values (top, right, bottom, and left sides). If the fourth value is omitted, it is the same as the second. If the third one is also omitted, it is the same as the first. If the second one is also omitted, it is the same as the first.
|length||A length unit specifying how far from the edges the border-image will appear. Default value is 0|
|number||Represent multiples of the corresponding border-width|
|initial||Sets this property to its default value. Read about initial|
|inherit||Inherits this property from its parent element. Read about inherit|