Bootstrap: add margin/padding space between columns

Simply add a div within col-md-6 that has the extra padding that you need. The col-md-6 is the 'backbone' to keep the column integrity, but you can add additional padding within it.

<div class="row">
    <div class="text-center col-md-6">
        <div class="classWithPad">Widget 1</div>
    </div>
    <div class="text-center col-md-6">
        <div class="classWithPad">Widget 2</div>
    </div>
</div>

CSS

.classWithPad { margin:10px; padding:10px; }

Bootstrap 5 (Update 2021)

Bootstrap 5 has still includes spacing utilities for padding. However, because of new RTL support "left" and "right" have been changed to "start" and "end". For example pl-2 is now ps-2.

• pl-* => ps-* (padding-left)
• pr-* => pe-* (padding-right)
• ml-* => ms-* (margin-left)
• mr-* => me-* (margin-right)

Additionally, Bootstrap 5 introduces new grid gutter classes that can be used to adjust the spacing between columns. The guttter is set on the row instead of each col-* inside the row. For example, use g-0 for no spacing between columns.

Bootstrap 5 column spacing demo

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Bootstrap 4 (Update 2018)

Bootstrap 4 has spacing utilities that make adding (or substracting) the space (gutter) between columns easier. Extra CSS isn't necessary.

<div class="row">
    <div class="text-center col-md-6">
        <div class="mr-2">Widget 1</div>
    </div>
    <div class="text-center col-md-6">
        <div class="ml-2">Widget 2</div>
    </div>
</div>

You can adjust margins on the column contents using the margin utils such as ml-0 (margin-left:0), mr-0 (margin-right:0), mx-1 (.25rem left & right margins), etc...

Or, you can adjust padding on the columns (col-*) using the padding utils such as pl-0 (padding-left:0), pr-0 (padding-right:0), px-2 (.50rem left & right padding), etc...

Bootstrap 4 Column Spacing Demo

Notes

• Changing the left/right margin(s) on col-* will break the grid.
• Change the left/right margin(s) on the content of col-* works.
• Change the left/right padding on the col-* also works.