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How can I use Bootstrap's responsive spacing utilities to adjust margins only on small screens?
Asked on Dec 24, 2025
Answer
Bootstrap provides responsive spacing utilities that allow you to adjust margins and padding based on screen size. To apply margins specifically for small screens, you can use the `m` class followed by the breakpoint (`sm`) and the side you want to adjust.
<!-- BEGIN COPY / PASTE -->
<div class="m-sm-3">
This div has a margin of 3 on small screens and above.
</div>
<!-- END COPY / PASTE -->Additional Comment:
✅ Answered with Bootstrap 5 best practices.- The `m-sm-3` class sets a margin of 3 units on all sides for small screens and larger.
- You can adjust specific sides using `mt`, `mb`, `ml`, `mr` for top, bottom, left, and right margins respectively.
- The number after the breakpoint (`3` in this case) can be any value from 0 to 5, where 0 removes the margin and 5 applies the largest margin.
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