QUOTE(nitsingh @ Feb 12 2013, 09:08 AM)
Plz define What is Alt Tag?
ALT tags provide a text alternative to an image.
They are a way to "describe" an image to those who can not see the image. The most important function of an ALT tag is to explain to a blind user what an image is displaying. Search engine crawlers also use ALT tags to decipher what an image is or what it is representing.