decor-6-site/site/snippets/blocks/imagefloat.php

<?php

/** @var \Kirby\Cms\Block $block */
$alt     = $block->alt();
$caption = $block->caption();
$src     = $block->image()->toFile()->url();

?>

<?php if ($src): ?>
<figure class="float-image">
  <img src="<?= $src ?>" alt="<?= $alt->esc() ?>">
  <?php if ($caption->isNotEmpty()): ?>
  <figcaption>
    <?= $caption->kt() ?>
  </figcaption>
  <?php endif ?>
</figure>

<?php endif ?>