Because Bootstrap 4 uses flexbox, the columns are always going to be equal height, and you’ll not be able to get the desktop (lg) layout that you want.
One option is to disable the flexbox for lg
. Use floats so that the 1,3 columns naturally pull to the right, since 2 is taller. The flexbox order-
will work on mobile.
https://codeply.com/go/8lsFAU3C5E
<div class="container">
<div class="row d-flex d-lg-block">
<div class="col-lg-8 order-1 float-left">
<div class="card card-body tall">2</div>
</div>
<div class="col-lg-4 order-0 float-left">
<div class="card card-body">1</div>
</div>
<div class="col-lg-4 order-1 float-left">
<div class="card card-body">3</div>
</div>
</div>
</div>
How this works
- Keep columns in the same row, since ordering is relative to parent
- The
d-flex d-lg-block
disables flex onlg
and up - The
float-left
float the columns when flex is disabled - The
order-*
reorder the columns when flex is enabled
Another option is some flexbox wrapping hack that uses w-auto
…
https://codeply.com/go/mKykCsBFDX
Also see:
How to fix unexpected column order in bootstrap 4?
Bootstrap Responsive Columns Height
B-A-C -> A-B-C