Understanding and example code of Vue default slot

<template>
  <div class="category">
    <h3>{{ title }}Category</h3>

    <!-- Define a default slot, then the content of the tag body in the corresponding component tag in App.vue will be placed in this slot-->
    <slot></slot>
  </div>
</template>

<script>
export default {
  name: "Category",
  props: ["title"],
};
</script>

<style>
.category {
  background-color: skyblue;
  width: 200px;
  height: 300px;
}
h3 {
  text-align: center;
  background-color: orange;
}
</style>

<template>
  <div class="container">
    <Category title="Food">
      <img
        src="https://zqcdn.itzjj.cn/static/skin/mfw0321/static/picture/dj_scv.jpg"
        alt="1"
      />
    </Category>
    <Category title="Games" :listData="games">
      <ul>
        <!-- At this time, because the variables are directly in app.vue, you can directly traverse game
        After traversing, use the slot function to pass it to Category.vue -->
        <li v-for="(g, index) in games" :key="index">
          {{ g }}
        </li>
      </ul></Category
    >

    <Category title="Movies" :listData="films">
      <!-- controls allow the video to play -->
      <video
        Controls
        src="http://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4"
      ></video>
    </Category>
  </div>
</template>

<script>
import Category from "./components/Category";

export default {
  name: "App",
  components: { Category },
  data() {
    return {
      foods: ["fire", "your meat", "meatballs"],
      games: ["Red Alert Online", "Cross Fire", "Audition"],
      films: ["The Godfather", "Shock Wave", "Awesome"],
    };
  },
};
</script>

<style>
.container {
  display: flex;
  justify-content: space-around;
}

video
  width: 100%;
}

img {
  width: 100%;
}
</style>