marc-leopold/layouts/default.vue

<template>
  <div class="page-container">
    <div class="page">
      <nuxt />
    </div>
    <SiteMenu class="menu"
              :is-open="isMenuOpen"
              @toggleMenu="toggleMenu"
    />
  </div>
</template>

<script>
import SiteMenu from '~/components/SiteMenu'

export default {
  components: {
    SiteMenu
  },

  data() {
    return {
      isMenuOpen: true,
    }
  },

  methods: {
    toggleMenu () {
      this.isMenuOpen = !this.isMenuOpen
    }
  }
}
</script>

<style scoped lang="scss">
.page-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;

  background-color: #333;
}

.page {
  z-index: $z-index__page;
  position: relative;
  width: 100%;
  height: 100%;
}

.menu {
  z-index: $z-index__menu;
}
</style>