부트 스트랩 4 센터 div
<div class="d-flex justify-content-start">...</div>
<div class="d-flex justify-content-end">...</div>
<div class="d-flex justify-content-center">...</div>
<div class="d-flex justify-content-between">...</div>
<div class="d-flex justify-content-around">...</div>
정렬 항목 센터 부트 스트랩
<div class="d-flex align-items-start">...</div>
<div class="d-flex align-items-end">...</div>
<div class="d-flex align-items-center">...</div>
<div class="d-flex align-items-baseline">...</div>
<div class="d-flex align-items-stretch">...</div>
부트 스트랩 오른쪽 정렬
To aligning div in bootstrap you can use bootstrap classes like
1. float-left
2. float-right
3. float-none
<div class="float-left">Float left on all viewport sizes</div><br>
<div class="float-right">Float right on all viewport sizes</div><br>
<div class="float-none">Don't float on all viewport sizes</div>
플렉스 랩 부트 스트랩
<div class="d-flex flex-wrap">...</div>
alighn 오른쪽 부스트랩 4
<div class="float-left">Float left on all viewport sizes</div><br>
<div class="float-right">Float right on all viewport sizes</div><br>
<div class="float-none">Don't float on all viewport sizes</div>
부트 스트랩 행 노 랩
<div class="row flex-nowrap">
<div class="col"></div>
<div class="col"></div>
</div>