Swiperjs 100% width bug when inside grid

I am facing an issue while using SwiperJS inside a grid. When I place the Swiper wrapper inside a <div> with display: grid, the wrapper overflows by 100%. I have provided a link to my JSFiddle example. If you remove the CSS, you will see that everything is normal. However, when I add the grid, that's when the problem occurs.

Thank you.

jsfiddle

<link
  rel="stylesheet"
  href="https://cdn.jsdelivr.net/npm/swiper@9/swiper-bundle.min.css"
/>

<div class="item-grid">
  <div>
    <div class="swiper mySwiper">
      <div class="swiper-wrapper">
        <div class="swiper-slide">Slide 1</div>
        <div class="swiper-slide">Slide 2</div>
        <div class="swiper-slide">Slide 3</div>
        <div class="swiper-slide">Slide 4</div>
        <div class="swiper-slide">Slide 5</div>
        <div class="swiper-slide">Slide 6</div>
        <div class="swiper-slide">Slide 7</div>
        <div class="swiper-slide">Slide 8</div>
        <div class="swiper-slide">Slide 9</div>
      </div>
      <div class="swiper-pagination"></div>
    </div>
  </div>
  <div></div>
</div>

<script src="https://cdn.jsdelivr.net/npm/swiper@9/swiper-bundle.min.js"></script>

<script>
  var swiper = new Swiper(".mySwiper", {
    slidesPerView: 6,
    spaceBetween: 30,
    pagination: {
      el: ".swiper-pagination",
      clickable: true,
    },
  });
</script>

.item-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-gap: 24px;
}

You can use flex instead of grid.

.item-grid {
   display: flex;
}
.item-grid > div {
   width: 50%;
}

Use this style.

You can set the min-width of the grid item containing the swiper to 100%.

<!-- begin snippet: js hide: false console: true babel: false -->

<!-- language: lang-css -->

.item-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-gap: 24px;
}

.item-grid> :first-child {
  min-width: 100%;
}

<!-- language: lang-html -->

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/swiper@9/swiper-bundle.min.css" />
<div class="item-grid">
  <div>
    <div class="swiper mySwiper">
      <div class="swiper-wrapper">
        <div class="swiper-slide">Slide 1</div>
        <div class="swiper-slide">Slide 2</div>
        <div class="swiper-slide">Slide 3</div>
        <div class="swiper-slide">Slide 4</div>
        <div class="swiper-slide">Slide 5</div>
        <div class="swiper-slide">Slide 6</div>
        <div class="swiper-slide">Slide 7</div>
        <div class="swiper-slide">Slide 8</div>
        <div class="swiper-slide">Slide 9</div>
      </div>
      <div class="swiper-pagination"></div>
    </div>
  </div>
  <div>content</div>
</div>
<script src="https://cdn.jsdelivr.net/npm/swiper@9/swiper-bundle.min.js"></script>
<script>
  var swiper = new Swiper(".mySwiper", {
    slidesPerView: 6,
    spaceBetween: 30,
    pagination: {
      el: ".swiper-pagination",
      clickable: true,
    },
  });
</script>

<!-- end snippet -->