h1{
        font-family: "MS P明朝","MS PMincho","ヒラギノ明朝 Pro W3","Hiragino Mincho Pro",serif;
        text-align: center;
        padding: 10px;
        border: 3px double #777799;
      }

      h2{
        font-family: "MS P明朝","MS PMincho","ヒラギノ明朝 Pro W3","Hiragino Mincho Pro",serif;
        background: -webkit-linear-gradient(to right, royalblue,white 20px,white);
        background: linear-gradient(to right, royalblue,white 20px,white);
        padding-left: 30px;
        border-bottom: 2px dotted #666666;
      }
      
      pre{
        font-size: large;
        margin-left: 2em;
      
      }