Bootstrap Gutters - Horizontal & Vertical Tables

All Direction Gutters (g-*)

Class	Space (rem)	Approx px	Meaning / Usage
g-0	0	0px	No spacing
g-1	0.25	4px	Very small spacing
g-2	0.5	8px	Small spacing
g-3	1	16px	Default spacing
g-4	1.5	24px	Large spacing
g-5	3	48px	Extra large spacing

Horizontal Gutters (gx-*)

Class	Space (rem)	Approx px	Usage
gx-0	0	0px	No horizontal space
gx-1	0.25	4px	Very small horizontal space
gx-2	0.5	8px	Small horizontal space
gx-3	1	16px	Default horizontal space
gx-4	1.5	24px	Large horizontal space
gx-5	3	48px	Extra large horizontal space

Vertical Gutters (gy-*)

Class	Space (rem)	Approx px	Usage
gy-0	0	0px	No vertical space
gy-1	0.25	4px	Very small vertical space
gy-2	0.5	8px	Small vertical space
gy-3	1	16px	Default vertical space
gy-4	1.5	24px	Large vertical space
gy-5	3	48px	Extra large vertical space

Visual Examples for Freshers

All Direction (g-3)

Column 1

Column 2

Horizontal Only (gx-4)

Column 1

Column 2

Vertical Only (gy-3)

Column 1

Column 2