It is a line around the HTML Element. Outline seems like border but it is not true.
Following are the facts related to outline css property.
- Outline do not occupy any space.
- Outline cannot be set for a specific side of any HTML elements.
Outline Style, Width & color can be set for an HTML Element.
Outline Style: To style the Outline of an HTML Element. Outline style can be following:
| dotted | Creates a dotted outline |
| dashed | Creates a dashed outline |
| solid | Creates a solid outline |
| double | Creates a double outline |
| groove | Creates a 3D grooved outline |
| ridge | Creates a 3D ridged outline |
| inset | Creates a 3D inset outline |
| outset | Creates a 3D outset outline |
| none | Creates no outline |
| hidden | Creates a hidden outline |