Live fluid grid example
The default Bootstrap grid system utilizes 12 columns.The fluid grid system uses percents instead of pixels for column widths. It has the same responsive capabilities as our fixed grid system, ensuring proper proportions for key screen resolutions and devices.
Fourth
 Fourth
 Fourth
 Fourth
 Seventh
 Sixth
 Sixth
 Twelfth
 FourthFourthFourthFourthSeventhSixthSixthTwelfth
Fluid offsetting
Operates the same way as the fixed grid system offsetting: add offset="1->12" to any column to offset by that many columns.
Fifth
 Sixth offset 1 
 Sixth 
 Fifth offset 1
 Seventh 
 Fourth offset 1 
 FifthSixth offset 1SixthFifth offset 1SeventhFourth offset 1