Principe

Possibilité d'implémenter une pagination suivant différents critères pré-établis.
Tout est construit avec les éléments HTML de liste, le tout dans une balise nav (avec aria-label) pour satisfaire les problématiques d'assistance.

<nav aria-label="Page navigation example">
    <ul class="pagination">
        <li class="page-item"><a class="page-link" href="#">Previous</a></li>
        <li class="page-item"><a class="page-link" href="#">1</a></li>
        <li class="page-item"><a class="page-link" href="#">2</a></li>
        <li class="page-item"><a class="page-link" href="#">3</a></li>
        <li class="page-item"><a class="page-link" href="#">Next</a></li>
    </ul>
</nav>
Avec des icônes
<nav aria-label="Page navigation example">
    <ul class="pagination">
        <li class="page-item">
            <a class="page-link" href="#" aria-label="Previous"><span aria-hidden="true">&laquo;</span></a>
        </li>
        <li class="page-item"><a class="page-link" href="#">1</a></li>
        <li class="page-item"><a class="page-link" href="#">2</a></li>
        <li class="page-item"><a class="page-link" href="#">3</a></li>
        <li class="page-item">
            <a class="page-link" href="#" aria-label="Next"><span aria-hidden="true">&raquo;</span></a>
        </li>
    </ul>
</nav>
États active et disabled
Active

Utiliser la classe .active et mettre aria-current="page" sur les a pour les technologies d'assistance.

<nav aria-label="...">
    <ul class="pagination">
        <li class="page-item"><a href="#" class="page-link">Previous</a></li>
        <li class="page-item"><a class="page-link" href="#">1</a></li>
        <li class="page-item active">
            <a class="page-link" href="#" aria-current="page">2</a>
        </li>
        <li class="page-item"><a class="page-link" href="#">3</a></li>
        <li class="page-item"><a class="page-link" href="#">Next</a></li>
    </ul>
</nav>

Si l'item n'est pas un lien, traiter l'item comme ceci :

<li class="page-item active">
    <span class="page-link">2</span>
</li>
Disabled

Utiliser la classe .disabled sur .page-item.

<nav aria-label="...">
    <ul class="pagination">
        <li class="page-item disabled">
            <a class="page-link">Previous</a>
        </li>
        <li class="page-item"><a class="page-link" href="#">1</a></li>
        <li class="page-item active">
            <a class="page-link" href="#" aria-current="page">2</a>
        </li>
        <li class="page-item"><a class="page-link" href="#">3</a></li>
        <li class="page-item">
            <a class="page-link" href="#">Next</a>
        </li>
    </ul>
</nav>

Dans le cas d'un item qui ne contiendrait pas un lien, faire comme ceci :

<li class="page-item disabled">
    <span class="page-link">Previous</span>
</li>
Tailles

Possibilité d'avoir une pagination plus grande ou plus petite en utilisant les classes .pagination-lg ou .pagination-sm sur l'élément .pagination.

LG
<nav aria-label="...">
    <ul class="pagination pagination-lg">
        <li class="page-item active" >
            <a class="page-link" aria-current="page">1</a>
        </li>
        <li class="page-item"><a class="page-link" href="#">2</a></li>
        <li class="page-item"><a class="page-link" href="#">3</a></li>
    </ul>
</nav>
SM
<nav aria-label="...">
    <ul class="pagination pagination-sm">
        <li class="page-item active">
            <a class="page-link" aria-current="page">1</a>
        </li>
        <li class="page-item"><a class="page-link" href="#">2</a></li>
    <li class="page-item"><a class="page-link" href="#">3</a></li>
    </ul>
</nav>
Alignement

On utilise les classes utilitaires .justify-content-center ou .justify-content-end sur l'élément .pagination.

<nav aria-label="Page navigation example">
    <ul class="pagination justify-content-center">
        <li class="page-item disabled">
            <a class="page-link">Previous</a>
        </li>
        <li class="page-item"><a class="page-link" href="#">1</a></li>
        <li class="page-item"><a class="page-link" href="#">2</a></li>
        <li class="page-item"><a class="page-link" href="#">3</a></li>
        <li class="page-item">
            <a class="page-link" href="#">Next</a>
        </li>
    </ul>
</nav>
<nav aria-label="Page navigation example">
    <ul class="pagination justify-content-end">
        <li class="page-item disabled">
            <a class="page-link">Previous</a>
        </li>
        <li class="page-item"><a class="page-link" href="#">1</a></li>
        <li class="page-item"><a class="page-link" href="#">2</a></li>
        <li class="page-item"><a class="page-link" href="#">3</a></li>
        <li class="page-item">
            <a class="page-link" href="#">Next</a>
        </li>
    </ul>
</nav>
CSS
Variables CSS
--#{$prefix}pagination-padding-x: #{$pagination-padding-x};
--#{$prefix}pagination-padding-y: #{$pagination-padding-y};
@include rfs($pagination-font-size, --#{$prefix}pagination-font-size);
--#{$prefix}pagination-color: #{$pagination-color};
--#{$prefix}pagination-bg: #{$pagination-bg};
--#{$prefix}pagination-border-width: #{$pagination-border-width};
--#{$prefix}pagination-border-color: #{$pagination-border-color};
--#{$prefix}pagination-border-radius: #{$pagination-border-radius};
--#{$prefix}pagination-hover-color: #{$pagination-hover-color};
--#{$prefix}pagination-hover-bg: #{$pagination-hover-bg};
--#{$prefix}pagination-hover-border-color: #{$pagination-hover-border-color};
--#{$prefix}pagination-focus-color: #{$pagination-focus-color};
--#{$prefix}pagination-focus-bg: #{$pagination-focus-bg};
--#{$prefix}pagination-focus-box-shadow: #{$pagination-focus-box-shadow};
--#{$prefix}pagination-active-color: #{$pagination-active-color};
--#{$prefix}pagination-active-bg: #{$pagination-active-bg};
--#{$prefix}pagination-active-border-color: #{$pagination-active-border-color};
--#{$prefix}pagination-disabled-color: #{$pagination-disabled-color};
--#{$prefix}pagination-disabled-bg: #{$pagination-disabled-bg};
--#{$prefix}pagination-disabled-border-color: #{$pagination-disabled-border-color};
Variables SASS
$pagination-padding-y:              .375rem;
$pagination-padding-x:              .75rem;
$pagination-padding-y-sm:           .25rem;
$pagination-padding-x-sm:           .5rem;
$pagination-padding-y-lg:           .75rem;
$pagination-padding-x-lg:           1.5rem;

$pagination-font-size:              $font-size-base;

$pagination-color:                  var(--#{$prefix}link-color);
$pagination-bg:                     var(--#{$prefix}body-bg);
$pagination-border-radius:          var(--#{$prefix}border-radius);
$pagination-border-width:           var(--#{$prefix}border-width);
$pagination-margin-start:           calc(-1 * #{$pagination-border-width}); // stylelint-disable-line function-disallowed-list
$pagination-border-color:           var(--#{$prefix}border-color);

$pagination-focus-color:            var(--#{$prefix}link-hover-color);
$pagination-focus-bg:               var(--#{$prefix}secondary-bg);
$pagination-focus-box-shadow:       $focus-ring-box-shadow;
$pagination-focus-outline:          0;

$pagination-hover-color:            var(--#{$prefix}link-hover-color);
$pagination-hover-bg:               var(--#{$prefix}tertiary-bg);
$pagination-hover-border-color:     var(--#{$prefix}border-color); // Todo in v6: remove this?

$pagination-active-color:           $component-active-color;
$pagination-active-bg:              $component-active-bg;
$pagination-active-border-color:    $component-active-bg;

$pagination-disabled-color:         var(--#{$prefix}secondary-color);
$pagination-disabled-bg:            var(--#{$prefix}secondary-bg);
$pagination-disabled-border-color:  var(--#{$prefix}border-color);

$pagination-transition:              color .15s ease-in-out, background-color .15s ease-in-out, border-color .15s ease-in-out, box-shadow .15s ease-in-out;

$pagination-border-radius-sm:       var(--#{$prefix}border-radius-sm);
$pagination-border-radius-lg:       var(--#{$prefix}border-radius-lg);