Principe
Bootstrap met à disposition des classes pour gérer facilement des piles horizontales ou verticales.
Verticale
Mettre la classe .vstack sur un conteneur d'items et utiliser les classes utilitaires de gap .gap-* pour gérer les espaces entre les éléments.
First item
Second item
Third item
<div class="vstack gap-3">
<div class="labo-col-item">First item</div>
<div class="labo-col-item">Second item</div>
<div class="labo-col-item">Third item</div>
</div>
Horizontale
Utiliser la classe .hstack.
First item
Second item
Third item
<div class="hstack gap-3">
<div class="labo-col-item">First item</div>
<div class="labo-col-item">Second item</div>
<div class="labo-col-item">Third item</div>
</div>
First item
Second item
Third item
<div class="hstack gap-3">
<div class="labo-col-item">First item</div>
<div class="labo-col-item ms-auto">Second item</div>
<div class="labo-col-item">Third item</div>
</div>
First item
Second item
Third item
<div class="hstack gap-3">
<div class="labo-col-item">First item</div>
<div class="labo-col-item ms-auto">Second item</div>
<div class="vr"></div>
<div class="labo-col-item">Third item</div>
</div>
Exemples
<div class="vstack gap-2 col-md-5 mx-auto">
<button type="button" class="btn btn-secondary">Save changes</button>
<button type="button" class="btn btn-outline-secondary">Cancel</button>
</div>
<div class="hstack gap-3">
<input class="form-control me-auto" type="text" placeholder="Add your item here..." aria-label="Add your item here...">
<button type="button" class="btn btn-secondary">Submit</button>
<div class="vr"></div>
<button type="button" class="btn btn-outline-danger">Reset</button>
</div>
CSS
.hstack {
display: flex;
flex-direction: row;
align-items: center;
align-self: stretch;
}
.vstack {
display: flex;
flex: 1 1 auto;
flex-direction: column;
align-self: stretch;
}