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HTML

              
                <div class="wrapper">
  <table class="CalendarTable">
    <caption>
      <a href="https://ginpen.com/2022/12/01/git-ginpei-advent-calendar-2022/">
        Gitの小ネタおれおれAdvent Calendar 2022
      </a>
    </caption>
    <thead>
      <tr>
        <th>Sun</th>
        <th>Mon</th>
        <th>Tue</th>
        <th>Wed</th>
        <th>Thu</th>
        <th>Fri</th>
        <th>Sat</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td></td>
        <td></td>
        <td></td>
        <td></td>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/01/git-cli-commit-graph/">
            <span class="CalendarTable-date">01</span>
            コンソールでもGUIみたいにグラフを表示</a>
        </td>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/02/git-config-file/">
            <span class="CalendarTable-date">01</span>
            Gitの設定ファイルを見てみる</a>
        </td>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/03/git-name-email/">
            <span class="CalendarTable-date">03</span>
            Gitコミット用の名前とメールアドレスを設定</a>
        </td>
      </tr>
      <tr>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/04/git-tab-width/">
            <span class="CalendarTable-date">04</span>
            Gitの表示でのタブ幅を設定する</a>
        </td>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/05/git-ignore-global/">
            <span class="CalendarTable-date">05</span>
            Gitでグローバルにファイルを無視する</a>
        </td>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/06/git-stash-untracked/">
            <span class="CalendarTable-date">06</span>
            gitに追加していない新しいファイルもstashで保管する</a>
        </td>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/07/git-revert-merge/">
            <span class="CalendarTable-date">07</span>
            Gitのマージコミットを元に戻す</a>
        </td>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/08/git-own-commits-30-days/">
            <span class="CalendarTable-date">08</span>
            Gitで過去30日分のコードを表示する</a>
        </td>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/09/git-back-to-last-branch/">
            <span class="CalendarTable-date">09</span>
            さっきまでいたブランチに戻る</a>
        </td>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/10/git-rename-remote-branch/">
            <span class="CalendarTable-date">10</span>
            間違ったリモートサーバーのブランチ名を変更(削除)する</a>
        </td>
      </tr>
      <tr>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/11/git-alias/">
            <span class="CalendarTable-date">11</span>
            よく使うコマンドのショートカット(エイリアス)を作る</a>
        </td>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/12/git-merged-branches/">
            <span class="CalendarTable-date">12</span>
            マージ済みブランチを表示、削除</a>
        </td>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/13/git-completion/">
            <span class="CalendarTable-date">13</span>
            Gitのブランチ名とかの入力を補完する</a>
        </td>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/14/git-log-diff-dots-meaning/">
            <span class="CalendarTable-date">14</span>
            git logやgit diffのドット2つ..と3つ…の違いは図示で簡単</a>
        </td>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/15/git-stash-keep-index/">
            <span class="CalendarTable-date">15</span>
            git stash -kや-pでステージ追加済みとかを残して一部だけ保管庫へ移動</a>
        </td>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/16/git-archive-zip/">
            <span class="CalendarTable-date">16</span>
            git archiveで納品用ZIPファイルにまとめる</a>
        </td>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/17/git-log-pretty/">
            <span class="CalendarTable-date">17</span>
            git logの表示を–prettyで調整</a>
        </td>
      </tr>
      <tr>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/18/git-cherry-pick-merge-commit/">
            <span class="CalendarTable-date">18</span>
            マージコミットをgit cherry-pickする</a>
        </td>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/19/git-log-pretty-format/">
            <span class="CalendarTable-date">19</span>
            git logの表示を–prettyでもっとカスタマイズ</a>
        </td>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/20/git-log-diary/">
            <span class="CalendarTable-date">20</span>
            git logから日報を自動生成する</a>
        </td>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/21/clone-since-one-year-ago/">
            <span class="CalendarTable-date">21</span>
            歴史の長いプロジェクトでも過去1年分に絞って高速clone</a>
        </td>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/22/merge-forked-to-upstream/">
            <span class="CalendarTable-date">22</span>
            フォーク元の上流ブランチをマージする</a>
        </td>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/23/git-diff-5-patterns/">
            <span class="CalendarTable-date">23</span>
            よく使うgit diff便利パターン5選</a>
        </td>
        <td>
          <a class="CalendarTable-link" href="https://ginpen.com/2022/12/24/git-bisect/">
            <span class="CalendarTable-date">24</span>
            git bisectで「いつの間にか壊れていた」を探して直す</a>
        </td>
      </tr>
    </tbody>
  </table>
</div>

              
            
!

CSS

              
                th {
  position: sticky;
  top: 0;
}

.wrapper {
/*   overflow: hidden; */
}

.CalendarTable {
  border-collapse: collapse;
  margin-inline: auto;
  width: min(700px, 100%);
  
  & > caption {
    font-size: 24px;
    font-weight: bold;
  }

  & > * > * > :is(th, td) {
    border: 1px solid gray;
    vertical-align: top;
    width: calc(100% / 7);
  }

  & > * > * > th {
    background-color: #333;
    color: #fff;
  }
  
  & > * > * > td {
    &:empty {
      background-color: #f9f9f9;
    }
  }
  
  .CalendarTable-link {
    display: block;
    padding: 8px;
    height: 100%;

    &:hover {
      background-color: #fffff0;
    }
  }
  
  .CalendarTable-date {
    color: #333;
    float: left;
    font-size: 2em;
    font-weight: bold;
    margin-inline-end: 8px;
  }
}

a {
  color: #03f;
  text-decoration: none;

  &:hover {
    text-decoration: underline;
  }
}

              
            
!

JS

              
                
              
            
!
999px

Console