Learn Bootstrap

Start Bootstrap...

Tips

• Start with Understanding How Boostrap is doing the magic of responsive-ness
• Learn about Grid system ...how Bootstrap devides Rows and colums
• A row can be devided into 12 columns.
• http://www.w3schools.com/bootstrap/bootstrap_grid_system.asp

Now try to Understand How it varies with Screen resolutions

• Learn about differences between col-lg,col-md,col-sm and col-xs
• Once you understand this,you can Work on differnt types of Bootsrap classes 
• learn abt classes for bootstrap buttons,bootstrap dropdowns,form-group and form-control classes 
• learn about btn classes like btn-primary,btn-warning etc..How colors and properties varies
• Know how responsive boostrap table can be used.
• Now learn about bootstrap plugins for datatable and  more ....
• Know about Font-awsome and bootstrap glyphicons and how can be used...

Best way to Learn step by step from W3 Schools

http://www.w3schools.com/bootstrap/

Main Source
Getbootstrap



Feel free to Comment for any doubts...