Swiper JS Pagination flèches à l'extérieur du conteneur

<!-- Swiper.JS - Display pagination arrows outside container:

You just have to change the location of the navigation HTML 
buttons and put them outside the swiper-container. 
-->

<div class="swiper-container">
 <div class="swiper-slides"></div>
</div>

<div class="swiper-button-prev-unique"></div>
<div class="swiper-button-next-unique"></div>
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