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  <a href="#dog">犬</a>
  <a href="#cat">猫</a>
  <a href="#okapi">オカピ</a>
  <section id="dog">
    <p class="description">いつも楽しそうな顔をしている。<br>ゴールデンレトリバー・チワワ・ダックスフンドなど</p>
  <section id="cat">
    <p class="description">自由気ままな性格が多い。<br>スコティッシュフォールド・マンチカン・ラグドールなど</p>
  <section id="okapi">
    <p class="description">ウマのようであり、そしてシマウマのようでもある</p>

<!-- あれ!?あれはオカピでしょ!! -->


                :root {
  --header-height: 70px;

html {
  scroll-behavior: smooth;

header {
  /* ヘッダーの高さ70pxを指定 */
  height: var(--header-height);
  position: fixed;
  top: 0;
  width: 100%;

section {
  /** スクロールスナップ領域を調整する */
  scroll-margin-top: var(--header-height);

/* 以下、その他のスタイル設定 */

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

header {
  background-color: rgba(255, 255, 255, 0.85);
  display: flex;
  gap: 20px;
  padding-left: 24px;
  padding-right: 24px;
  justify-content: center;
  align-items: center;

header a {
  color: black;
  display: block;
  font-size: 20px;
  font-weight: bold;

main {
  /* mainのmargin-topにヘッダーの高さを指定 */
  margin-top: var(--header-height);

section {
  text-align: center;
  font-size: 120px;
  padding: 24px;

h2 {
  font-size: 30px;

.description {
  font-size: 20px;
  margin-top: 6px;

section#dog {
  background-color: #c98df6;

section#cat {
  background-color: #f4481a;

section#okapi {
  background-color: #aee712;

/* オカピは知らない!! */