What is the use of Gutter Variable in Bootstrap ?

In Bootstrap, the gutter variable is used to control the spacing between columns in the grid system. It determines the amount of space (in pixels) between adjacent columns, allowing developers to adjust the overall layout and spacing of their grid-based designs.

Bootstrap 5 Gutters:

• Horizontal gutters: A horizontal gutter is used for horizontal padding between columns, responsively space, and aligning content to the grid system.
• Vertical gutters: A vertical gutter is used for vertical padding between columns.
• Horizontal & vertical Gutters: In Bootstrap 5, horizontal & vertical gutters are used to give horizontal & vertical padding between columns.
• Row columns gutters: This gutter is used to create responsive space in our grid.
• No gutters: No gutters remove margin and padding from rows and columns.

Syntax:

$grid-gutter-width: 30px; // Example value for the gutter variable

Explanation: By customizing the value of the gutter variable, developers can increase or decrease the space between columns in the grid system. A larger gutter value results in more space between columns, while a smaller gutter value reduces the spacing. This flexibility enables fine-tuning of the layout to meet specific design requirements and ensures consistency in spacing across different screen sizes and devices.

Features:

• Allows developers to control the spacing between columns in Bootstrap’s grid system.
• Provides flexibility in adjusting the overall layout and spacing of grid-based designs.
• Customizable value enables fine-tuning of spacing to meet specific design requirements.
• Ensures consistency in spacing across different screen sizes and devices.
• Facilitates responsive design by adjusting gutter width dynamically based on viewport size.

Ref: https://www.geeksforgeeks.org/bootstrap-5-gutters/