The "outline-width" CSS Property

This property sets the width of the outline. Border widths cannot be negative.

Values for "outline-width"

CSS Level	Value
CSS Basic User Interface Level 4	"<line-width>", where <line-width> = "<length [0,∞]> | thin | medium | thick"

Recommended Links

• CanIUse.com: Search "outline-width" (browser compatibility information)
• CanIEmail.com: Search "outline-width" (email client compatibility information)
• CSS 2.1: outline-width property
• CSS3: outline-width property
• MDN: outline-width property
• Quackit: outline-width property

Search Engine Links (for more information)

• Bing "CSS outline-width property"
• Google "CSS outline-width property"