An outline is a line that is drawn around elements, OUTSIDE the borders, to make the element stand out. CSS has the following outline properties: Outline Width · The outline-style Property · W3Schools Tryit Editor
Outline is a line outside of the element's border. Unlike other areas of the box, outlines don't take up space, so they don't affect the layout ... Outline-style · Outline-offset · Outline-color · Outline-width
An outline is a line that is drawn around elements, outside the borders, to make the element stand out. The outline property is a shorthand property for: CSS outline · Outline-color · Outline-style · Outline-offset