/* 全体のリセット */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family:"Yu Gothic", "游ゴシック", YuGothic, "游ゴシック体";
    line-height: 1.6;
  }

.course-title {
    background: #e74c3c;
    color: white;
    padding: 10px;
    text-align: center;
    margin: 0;
  }
  
  .course-title span {
  text-decoration: underline;
  }


/* フッター */
footer {
    background-color: rgb(173, 231, 249);
    color: rgb(0, 0, 0);
    padding: 20px 10px;
    text-align: center;
  }
  
  .footer-menu-list {
    list-style: none;
    padding: 0;
  }
  
  .footer-menu-list li {
    display: inline-block;
    margin: 0 10px;
  }
  
  .footer-menu-list a {
    text-decoration: none;
    color: #333;
  }
  
  .copyright {
    margin-top: 10px;
    font-size: 14px;
    text-align: center;
  }