An outline is a line that is drawn around elements (outside the borders)
to make the element "stand out".
The outline properties specify the style, color,
and width of an outline.
CSS Outline
An outline is a line that is drawn around elements (outside the borders) to
make the element "stand out".
However, the outline property is different from the border property.
The outline is not a part of an element's dimensions; the
element's total width and height is not affected by the width of the outline.
All CSS Outline Properties
The number in the "CSS" column indicates in which CSS version the property is defined (CSS1 or CSS2).
| Property |
Description |
Values |
CSS |
| outline
|
Sets all the outline properties in
one declaration |
outline-color
outline-style
outline-width
inherit |
2 |
|
outline-color |
Sets the color of an outline |
color_name
hex_number
rgb_number
invert
inherit |
2 |
|
outline-style |
Sets the style of an outline |
none
dotted
dashed
solid
double
groove
ridge
inset
outset
inherit |
2 |
|
outline-width |
Sets the width of an outline |
thin
medium
thick
length
inherit |
2 |
