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HTML

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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.

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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 

              
                <div class="container">
      <div class="bubble-wrapper">
        <p class="bubble">
          あのイーハトーヴォのすきとおった風、夏でも底に冷たさをもつ青いそら
        </p>
      </div>
      <div class="bubble-wrapper">
        <p class="bubble">
          うつくしい森で飾られたモリーオ市、郊外のぎらぎらひかる草の波
        </p>
      </div>
      <div class="bubble-wrapper">
        <p class="bubble">またそのなかでいっしょになったたくさんのひとたち</p>
      </div>
      <div class="bubble-wrapper">
        <p class="bubble">
          ファゼーロとロザーロ、羊飼のミーロや、顔の赤いこどもたち
        </p>
      </div>
      <div class="bubble-wrapper">
        <p class="bubble">
          地主のテーモ、山猫博士のボーガント・デストゥパーゴなど
        </p>
      </div>
      <div class="bubble-wrapper">
        <p class="bubble">いまこの暗い巨きな石の建物のなかで考えていると</p>
      </div>
      <div class="bubble-wrapper">
        <p class="bubble">
          みんなむかし風のなつかしい青い幻燈のように思われます
        </p>
      </div>
      <div class="bubble-wrapper">
        <p class="bubble">では、わたくしはいつかの小さなみだしをつけながら</p>
      </div>
      <div class="bubble-wrapper">
        <p class="bubble">
          しずかにあの年のイーハトーヴォの五月から十月までを書きつけましょう
        </p>
      </div>
    </div>
!

CSS 

              
                * {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: sans-serif;
  background-color: #ffe194;
}

.container {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding: 100vh 0 40px;
}

.bubble-wrapper {
  width: 100%;
  display: flex;
  justify-content: space-between;
}

.bubble-wrapper:not(:first-of-type) {
  margin-top: 40px;
}

.bubble-wrapper:nth-of-type(2n) {
  flex-direction: row-reverse;
}

.bubble-wrapper::after {
  display: block;
  content: '';
}

.bubble {
  position: relative;
  max-width: 60%;
  font-size: 14px;
  letter-spacing: 0.1em;
  padding: 20px;
  border-radius: 20px;
}

.bubble::after {
  display: block;
  position: absolute;
  content: '';
  width: 18px;
  height: 20px;
  bottom: 20px;
}

.bubble-wrapper:nth-of-type(2n) .bubble {
  background-color: #4c4c6d;
  color: white;
}

.bubble-wrapper:nth-of-type(2n + 1) .bubble {
  background-color: #e8f6ef;
  color: #222;
}

.bubble-wrapper:nth-of-type(2n) .bubble::after {
  background-color: #4c4c6d;
  clip-path: polygon(0 0, 0% 100%, 100% 50%);
  right: -16px;
}

.bubble-wrapper:nth-of-type(2n + 1) .bubble::after {
  background-color: #e8f6ef;
  clip-path: polygon(0 50%, 100% 0, 100% 100%);
  left: -16px;
}
!

JS 

              
                const spanWrapText = (target) => {
  const nodes = [...target.childNodes]; // ノードリストを配列にする
  let returnText = ''; // 最終的に返すテキスト

  for (const node of nodes) {
    if (node.nodeType == 3) {
      //テキストの場合
      const text = node.textContent.replace(/\r?\n/g, ''); //テキストから改行コード削除
      const splitText = text.split(''); // 一文字ずつ分割
      for (const char of splitText) {
        returnText += `<span>${char}</span>`; // spanタグで挟んで連結
      }
    } else {
      //テキスト以外の場合
      //<br>などテキスト以外の要素をそのまま連結
      returnText += node.outerHTML;
    }
  }
  return returnText;
};

const bubbles = [...document.querySelectorAll('.bubble')];
for (const bubble of bubbles) {
  bubble.innerHTML = spanWrapText(bubble);

  // spanたちを配列にし、それをプロパティとして持っておく
  bubble.spans = bubble.querySelectorAll('span');

  // scrollTriggerによって発火するTimelineを作成
  const tl = gsap.timeline({
    scrollTrigger: {
      trigger: bubble, // 吹き出しをアニメーション発火のトリガーに
      start: 'top 90%', // 吹き出しの上部（TOP）が、画面の上から90%の位置を通過したらスタート
    },
  });

  // アニメーションタイムライン。上から順に動作する
  tl.from(bubble, {
    opacity: 0,
    y: '10%',
  }).from(bubble.spans, {
    opacity: 0,
    duration: 0.01,
    stagger: 0.03,
  });
}
!
999px

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