.footer {
    font-family: sans-serif;
  }
  
 
  ul {
    list-style: none;
    padding: 0;
    margin: 0;
  }
  
  a {
    color: #999;
    text-decoration: none;
  }
  
  a:hover {
    color: #000;
  }
  
  .flex {
    display: flex;
  }
  
  hr {
    height: 1px;
    border: 0;
    border-top: 1px solid #e5e7eb;
  }
  
  .footer {
    padding: 2rem;
    font-size: 15px;
    color: #ffffff;
    background: #282828;
  }

  
  
  .footer__navi {
    flex-wrap: wrap;
    margin-bottom: 2rem;
  }
  
  .footer__navi li {
    display: inline-block;
  }
  
  .footer__navi li:not(:last-child) {
    margin-right: 16px;
  }
  
  .footer__logo {
    display: inline-block;
    margin-bottom: 1rem;
  }
  
  @media (min-width: 768px) {
    .md-flex {
      display: flex;
    }
  
    .md-justify-between {
      justify-content: space-between;
    }
  
    .copyright {
      text-align: left;
      color: #ffffff;
    }
  }