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HTML

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Adding Classes

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About the <head>

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Insecure Resource

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

Vendor Prefixing

About Vendor Prefixing

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JavaScript

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JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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HTML 

              
                <header>
  <!-- ハンバーガーメニューボタン -->
  <button
    class="hamburger"
    type="button"
    id="js-buttonHamburger"
    aria-expanded="false"
  >
    <span class="hamburger-line">
      <span class="visuallyHidden">メニューを開閉する</span>
    </span>
  </button>
</header>
<!-- オーバーレイ -->
<div class="overlay" id="js-overlay"></div>
<!-- ハンバーガーメニュー -->
<div class="modal-container" id="modal-1" aria-hidden="true">
  <div tabindex="-1" data-micromodal-close>
    <div role="dialog" aria-modal="true" aria-labelledby="modal-1-title">
      <div id="modal-1-content">
        <ul class="menu-list">
          <li class="menu-item">
            <a class="menu-link" href="#anchor01">HOME</a>
          </li>
          <li class="menu-item">
            <a class="menu-link" href="#anchor02">ABOUT</a>
          </li>
          <li class="menu-item">
            <a class="menu-link" href="#anchor03">SHOP</a>
          </li>
          <li class="menu-item">
            <a class="menu-link" href="#anchor04">NEWS</a>
          </li>
          <li class="menu-item">
            <a class="menu-link" href="#anchor05">ACCESS</a>
          </li>
          <li class="menu-item">
            <a class="menu-link" href="#anchor06">CONTACT</a>
          </li>
        </ul>
      </div>
    </div>
  </div>
</div>
<!-- メインコンテンツ -->
<main>
  <section class="section01" id="anchor01">
    <h2 class="section-title">HOME</h2>
  </section>
  <section class="section02" id="anchor02">
    <h2 class="section-title">ABOUT</h2>
  </section>
  <section class="section03" id="anchor03">
    <h2 class="section-title">SHOP</h2>
  </section>
  <section class="section04" id="anchor04">
    <h2 class="section-title">NEWS</h2>
  </section>
  <section class="section05" id="anchor05">
    <h2 class="section-title">ACCESS</h2>
  </section>
  <section class="section06" id="anchor06">
    <h2 class="section-title">CONTACT</h2>
  </section>
</main>
!

CSS 

              
                /* アクセシビリティ対策 */
.visuallyHidden {
  border: 0;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}
/* ハンバーガーボタンのスタイル */
.hamburger {
  appearance: none;
  background-color: transparent;
  border: none;
  cursor: pointer;
  display: block;
  height: 32px;
  outline: none;
  position: fixed;
  right: 30px;
  top: 30px;
  transition: transform .6s, width .6s;
  width: 40px;
  z-index: 200; /* メニューが開いてもハンバーガーボタンが上に表示されるように */
}
/* ハンバーガーメニュー三本線 */
.hamburger-line {
  background-color: #000;
  height: 2px;
  left: 0;
  margin: auto;
  position: absolute;
  right: 0;
  top: 0;
  transition: inherit;
  width: 100%;
}
.hamburger-line::before,
.hamburger-line::after {
  background-color: #000;
  content: "";
  display: block;
  height: 100%;
  position: absolute;
  transition: inherit;
  width: 100%;
}
.hamburger-line::before {
  top: 10px;
}
.hamburger-line::after {
  top: 20px;
}
/* ハンバーガーメニュー三本線オープン時 */
.hamburger[aria-expanded="true"] .hamburger-line {
  transform: translateY(15px) rotate(-45deg);
}
.hamburger[aria-expanded="true"] .hamburger-line::before {
  transform: translateY(-12px) translateX(20px) rotate(45deg);
  width: 0;
}
.hamburger[aria-expanded="true"] .hamburger-line::after {
  transform: translateY(-20px) rotate(90deg);
}
/* オーバーレイのスタイル */
.overlay {
  background-color: #333;
  cursor: pointer;
  height: 100vh;
  left: 0;
  opacity: 0;
  position: fixed;
  top: 0;
  transition: opacity .6s, visibility .6s;
  visibility: hidden;
  width: 100vw;
  z-index: 10;
}
.overlay.active {
  opacity: .8;
  visibility: visible;
}
/* メニューのスタイル */
.modal-container {
  background-color: #fff;
  height: 50%;
  position: fixed;
  top: -100%;
  transition: top .6s ease-in-out;
  width: 100%;
  z-index: 20; /* オーバーレイよりも上に来るようにするため */
}
.modal-container[aria-hidden="false"] {
  overflow-y: scroll;
  top: 0;
  transition: top .6s ease-in-out;
}
.menu-item {
  margin-top: 20px;
  text-align: center;
}
.menu-link {
  display: inline-block;
}
/* セクションのスタイル */
section {
  background-color: rgba(255, 255, 255, .1);
  background-image: repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(255, 1, 1, .1) 10px, rgba(255, 1, 1, .1) 20px );
  background-size: auto auto;
  height: 300px;
}
.section-title {
  color: #333;
  font-size: 50px;
  text-align: center;
}
.section01 {
  background-color: #e2ffc6;
}
.section02 {
  background-color: #c6ffff;
}
.section03 {
  background-color: #ffc6ff;
}
.section04 {
  background-color: #ffe2c6;
}
.section05 {
  background-color: #c6c6ff;
}
.section06 {
  background-color: #ffffc6;
}
!

JS 

              
                window.addEventListener("DOMContentLoaded", () => {
  // ページ内リンクの取得
  const anchorLinks = document.querySelectorAll('a[href^="#"]');
  // NodeList を Array に変換
  const anchorLinksArr = Array.from(anchorLinks);
  // ハンバーガーメニューボタンの取得
  const btn = document.querySelector("#js-buttonHamburger");
  // オーバーレイの取得
  const overlay = document.querySelector("#js-overlay");

  // ページ内リンクのクリックイベントリスナー
  anchorLinksArr.forEach((link) => {
    link.addEventListener("click", (e) => {
      e.preventDefault(); // デフォルトの挙動をキャンセル
      const targetId = link.hash; // リンク先の要素のIDを取得
      const targetElement = document.querySelector(targetId); // リンク先の要素を取得
      const targetoffsetTop =
        window.pageYOffset + targetElement.getBoundingClientRect().top; // スクロール量を取得

      // メニューが開いている場合は閉じる
      if (btn.ariaExpanded == "true") {
        btn.ariaExpanded = false;
        overlay.classList.remove("active"); // オーバーレイを非表示にする
      }

      // 全てのページ内リンク要素の ariaExpanded を false にする
      anchorLinksArr.forEach((link) => {
        link.ariaExpanded = false;
      });

      MicroModal.close("modal-1"); // モーダルを閉じる

      // スムーススクロール
      window.scrollTo({
        top: targetoffsetTop,
        behavior: "smooth", // スムーススクロールを有効にする
      });
    });
  });

  // ハンバーガーメニューボタンのクリックイベントリスナー
  btn.addEventListener("click", function () {
    if (btn.ariaExpanded == "false") {
      btn.ariaExpanded = true;
      MicroModal.show("modal-1", {
        disableScroll: true, // スクロールを無効化
        awaitOpenAnimation: true, // 開くアニメーションの完了を待つ
      });
      overlay.classList.add("active"); // オーバーレイを表示する
    } else {
      btn.ariaExpanded = false;
      MicroModal.close("modal-1", {
        awaitCloseAnimation: true, // 閉じるアニメーションの完了を待つ
      });
      overlay.classList.remove("active"); // オーバーレイを非表示にする
    }
  });

  // オーバーレイのクリックイベントリスナー
  overlay.addEventListener("click", function () {
    btn.ariaExpanded = false;
    MicroModal.close("modal-1", {
      awaitCloseAnimation: true, // 閉じるアニメーションの完了を待つ
    });
    overlay.classList.remove("active"); // オーバーレイを非表示にする
  });

  // ESCキーが押された時の処理
  document.addEventListener("keydown", function (e) {
    if (e.key === "Escape") {
      btn.ariaExpanded = false;
      MicroModal.close("modal-1", {
        awaitCloseAnimation: true, // 閉じるアニメーションの完了を待つ
      });
      overlay.classList.remove("active"); // オーバーレイを非表示にする
    }
  });
});
!
999px

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