row justify-content-between

html bootstrap5 Sample

両端から均等に配置：justify-content:space-between

col-4

  <!-- 左右に配置され、残りは勝手に余白になる -->
  <div class="row justify-content-between">
    <div class="col-4">col-4</div>
    <div class="col-4">col-4</div>
  </div>