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.
FourthFourthFourthFourthSeventhSixthSixthTwelfth
Operates the same way as the fixed grid system offsetting: add offset="1->12"
to any column to offset by that many columns.
FifthSixth offset 1SixthFifth offset 1SeventhFourth offset 1