Styling Placeholder ​

<script setup lang="ts">
import { reactive } from 'vue'

const layout = reactive([
  { x: 0, y: 0, w: 2, h: 2, i: '0', static: false },
  { x: 2, y: 0, w: 2, h: 4, i: '1', static: true },
  { x: 4, y: 0, w: 2, h: 5, i: '2', static: false },
  { x: 6, y: 0, w: 2, h: 3, i: '3', static: false },
  { x: 8, y: 0, w: 2, h: 3, i: '4', static: false },
  { x: 10, y: 0, w: 2, h: 3, i: '5', static: false },
  { x: 0, y: 5, w: 2, h: 5, i: '6', static: false },
  { x: 2, y: 5, w: 2, h: 5, i: '7', static: false },
  { x: 4, y: 5, w: 2, h: 5, i: '8', static: false },
  { x: 6, y: 3, w: 2, h: 4, i: '9', static: true },
  { x: 8, y: 4, w: 2, h: 4, i: '10', static: false },
  { x: 10, y: 4, w: 2, h: 4, i: '11', static: false },
  { x: 0, y: 10, w: 2, h: 5, i: '12', static: false },
  { x: 2, y: 10, w: 2, h: 5, i: '13', static: false },
  { x: 4, y: 8, w: 2, h: 4, i: '14', static: false },
  { x: 6, y: 8, w: 2, h: 4, i: '15', static: false },
  { x: 8, y: 10, w: 2, h: 5, i: '16', static: false },
  { x: 10, y: 4, w: 2, h: 2, i: '17', static: false },
  { x: 0, y: 9, w: 2, h: 3, i: '18', static: false },
  { x: 2, y: 6, w: 2, h: 2, i: '19', static: false }
])
</script>

<template>
  <GridLayout v-model:layout="layout" :row-height="30">
    <template #item="{ item }">
      <span class="text">{{ `${item.i}${item.static ? '- Static' : ''}` }}</span>
    </template>
  </GridLayout>
</template>

<style scoped>
.vgl-layout {
  --vgl-placeholder-bg: green;

  background-color: #eee;
}

:deep(.vgl-item:not(.vgl-item--placeholder)) {
  background-color: #ccc;
  border: 1px solid black;
}

:deep(.vgl-item--resizing) {
  opacity: 90%;
}

:deep(.vgl-item--static) {
  background-color: #cce;
}

.text {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: auto;
  font-size: 24px;
  text-align: center;
}
</style>