border-info
bootstrap5.css
bootstrap5.css
.border-info {
border-color: #17a2b8 !important;
}
html bootstrap5 Sample
ボーダー色を設定する:border-*
<span class="border border-primary">border-primary</span>
<span class="border border-secondary">border-secondary</span>
<span class="border border-success">border-success</span>
<span class="border border-danger">border-danger</span>
<span class="border border-warning">border-warning</span>
<span class="border border-info">border-info</span>
<span class="border border-light">border-light</span>
<span class="border border-dark">border-dark</span>
<span class="border border-white">border-white</span>