CSS: What this Asterisk (*) does?

Question

this line of code is for the navigation bar of Apple.com

#globalheader #globalnav[class*="nosearch"] { width:100%; }

Somebody know what that asterisk after class means there?

Answer 1

#globalnav[class*="nosearch"]

means: class contains "nosearch"

---

#globalnav[class^="nosearch"]

means: class starts with "nosearch"

---

#globalnav[class$="nosearch"]

means: class ends with "nosearch"

---

Reference: http://reference.sitepoint.com/css/css3attributeselectors