border border-bottom-0

bootstrap5.css

bootstrap5.css
.border-bottom-0 {
  border-bottom: 0 !important;
}

html bootstrap5 Sample

ボーダーを削除する:border-0


border-0 border-top-0 border-end-0 border-bottom-0 border-start-0
  <!-- 全ボーダー削除 -->
  <span class="border border-0">border-0</span>
  <span class="border border-top-0">border-top-0</span>
  <span class="border border-end-0">border-end-0</span>
  <span class="border border-bottom-0">border-bottom-0</span>
  <span class="border border-start-0">border-start-0</span>