Vue.jsでハンバーガーメニューと横からスライドするメニューリスト

やりたいこと

• ヘッダにハンバーガーメニューを置く。
• ヘッダをクリックすると、横からメニューがスライドして出てくる。

コード

下記ソースは単一ファイルコンポーネントです。
全てコピーして.vueで保存することで（多分）そのまま動きます。

<template>
  <div>
    <header class="header clearfix">
      <div class="menu" @click="openMenu">
        <span class="menu-line"></span>
        <span class="menu-line"></span>
        <span class="menu-line"></span>
      </div>
    </header>
    <div class="menu-list" :class="{'avtive': isOpen}" >
      <h1>Menu List</h1>
    </div>
    <div class="contents">
      <p>Lorem Ipsum is simply dummy text
         of the printing and typesetting industry.
         Lorem Ipsum has been the industry's standard dummy text
         ever since the 1500s, when an unknown printer
         took a galley of type and scrambled it to make a type specimen book.
         It has survived not only five centuries,
         but also the leap into electronic typesetting,
         remaining essentially unchanged.
         It was popularised in the 1960s with
         the release of Letraset sheets containing Lorem Ipsum passages,
         and more recently with desktop publishing software like
         Aldus PageMaker including versions of Lorem Ipsum.</p>
    </div>
  </div>
</template>

<script>
export default {
  name: 'AppTest',

  data() {
    return {
      isOpen: false,
    };
  },

  methods: {
    openMenu() {
      this.isOpen = !this.isOpen;
    },
  },
};
</script>

<style>
.header {
  width: 100%;
  height: auto;
  position: relative;
  background: rgba(0, 0, 0, 0.3);
  display: inline-block;
}

.clearfix::after {
  content: '';
  display: block;
  clear: both;
 }

.menu {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  right: 0;
  width: 44px;
  padding: 13px 10px;
  width: 60px;
  height: 60px;
  float: right;
  transition: all .4s;
}

.menu-line {
  display: block;
  width: 60px;
  height: 2px;
  margin: 0 auto 0 0;
  background: #0257BD;
  transition: all .4s;
}

.menu-line:nth-child(2){
  width: 40px;
  margin: 0 0 0 auto;
}

.menu-line:nth-child(3){
  width: 35px;
  margin: 0 0 0 auto;
}

.menu-list {
  position: fixed;
  right: 0;
  width: 82%;
  height: 100%;
  background: #fff;
  font-size: 14px;
  transform: translateX(+100%);
  transition: all .3s;
  background: gray;
}

.menu-list.avtive {
  transform: translateX(0)
}
</style>

参考にしたページ

www.yabi-blog.xyz

www.markernet.co.jp