How to center an element within a span in Bootstrap when the span includes other elements

How to center an element within a span in Bootstrap when the span includes
other elements

References

Reference NO 1

http://stackoverflow.com/questions/15199270/how-to-center-an-element-within-a-span-in-bootstrap-when-the-span-includes-other

Reference NO 2

http://stackoverflow.com/questions/11718457/bootstrap-spans

Reference NO 3

http://stackoverflow.com/questions/18016848/how-to-center-a-span-with-twitter-bootstrap

Reference NO 4

http://stackoverflow.com/questions/9184141/how-do-you-get-centered-content-using-twitter-bootstrap

Reference NO 5

http://stackoverflow.com/questions/16272055/bootstrap-center-any-span

Reference NO 6

http://blog.teamtreehouse.com/customize-an-html5-webpage-using-the-bootstrap-framework

Reference NO 7

#EANF#

Reference NO 8

#EANF#