Las insignias se utilizan para agregar información adicional a cualquier contenido. Usa la clase .badge junto con una clase contextual (como .badge-secondary) dentro de los elementos <span> para crear insignias rectangulares. Ten en cuenta que las insignias se escalan para coincidir con el tamaño del elemento principal (si lo hay).
Ejm
<h1>Example heading <span class="badge badge-secondary">New</span></h1>
<h2>Example heading <span class="badge badge-secondary">New</span></h2>
<h3>Example heading <span class="badge badge-secondary">New</span></h3>
<h4>Example heading <span class="badge badge-secondary">New</span></h4>
<h5>Example heading <span class="badge badge-secondary">New</span></h5>
<h6>Example heading <span class="badge badge-secondary">New</span></h6>
Insignias contextuales
Usa cualquiera de las clases contextuales (.badge- *) para cambiar el color de una insignia:
Ejm
<span class="badge badge-primary">Primary</span>
<span class="badge badge-secondary">Secondary</span>
<span class="badge badge-success">Success</span>
<span class="badge badge-danger">Danger</span>
<span class="badge badge-warning">Warning</span>
<span class="badge badge-info">Info</span>
<span class="badge badge-light">Light</span>
<span class="badge badge-dark">Dark</span>
Insignias redondeadas
Use la clase .badge-pill para hacer que las insignias sean más redondas:
Ejm
<span class="badge badge-pill badge-primary">Primary</span>
<span class="badge badge-pill badge-secondary">Secondary</span>
<span class="badge badge-pill badge-success">Success</span>
<span class="badge badge-pill badge-danger">Danger</span>
<span class="badge badge-pill badge-warning">Warning</span>
<span class="badge badge-pill badge-info">Info</span>
<span class="badge badge-pill badge-light">Light</span>
<span class="badge badge-pill badge-dark">Dark</span>
Insignia dentro de un elemento
Un ejemplo de uso de una insignia dentro de un botón.
Ejm
<button type="button" class="btn btn-primary">
Messages <span class="badge badge-light">4</span>
</button>