row align-items-start

html bootstrap5 Sample

垂直整列：align-items-startとalign-items-centerとalign-items-end

col
col
col
col
col
col
col
col
col
  <!-- 上寄せ高さは隣接rowで決まる模様 -->
  <div class="row align-items-start">
    <div class="col">col</div>
    <div class="col">col</div>
    <div class="col">col</div>
  </div>
  <div class="row align-items-center">
    <div class="col">col</div>
    <div class="col">col</div>
    <div class="col">col</div>
  </div>
  <!-- 下寄せ高さは隣接rowで決まる模様 -->
  <div class="row align-items-end">
    <div class="col">col</div>
    <div class="col">col</div>
    <div class="col">col</div>
  </div>