How to make gap between multiple Item?

[hasibdev]

[NgallaJuke]

    <hooper group="group1" class="hooper_small_image" :itemsToShow="3">
        <slide v-for="img in images.normal_size" :key="img.id">
          <img class="slide_image_small" :src="img.url" alt="product_image" />
        `</slide>``
```

add a margin to the class slide_image_small