w3soutline

Theoutlinepropertyisashorthandpropertyforsettingthefollowingindividualoutlineproperties:outline-width;outline-style ...,Anoutlineisalinearoundanelement.Itisdisplayedaroundthemarginoftheelement.However,itisdifferentfromtheborderproperty.Theoutlineisnot ...,DefinitionandUsage.Anoutlineisalinethatisdrawnaroundelements,outsidetheborders,tomaketheelementstandout.Theoutline-colorproperty ...,Definit...

參考資訊如下
CSS Outline Shorthand Property

The outline property is a shorthand property for setting the following individual outline properties: outline-width; outline-style ...

HTML DOM Style outline Property

An outline is a line around an element. It is displayed around the margin of the element. However, it is different from the border property. The outline is not ...

CSS outline

Definition and Usage. An outline is a line that is drawn around elements, outside the borders, to make the element stand out. The outline-color property ...

CSS outline

Definition and Usage. The outline-offset property adds space between the outline and the edge or border of an element. The space between an element and its ...

CSS Outline Color

CSS Outline Color. The outline-color property is used to set the color of the outline. The color can be set by: name - specify a color name, like red ...

CSS Outline Width

The following example shows some outlines with different widths: A thin outline. A medium outline. A thick outline. A 4px thick outline ...

CSS Outline Offset

The outline-offset property adds space between an outline and the edge/border of an element. The space between an element and its outline is transparent.

CSS outline

Definition and Usage. An outline is a line that is drawn around elements, outside the borders, to make the element stand out. The outline-style property ...

CSS Outline Properties

An outline is a line that is drawn around elements, OUTSIDE the borders, to make the element stand out.

CSS outline Property

An outline is a line that is drawn around elements, outside the borders, to make the element stand out. The outline property ...