body {
    font-family: Lato, "Noto Sans JP", "游ゴシック Medium", "游ゴシック体", "Yu Gothic Medium", YuGothic, "ヒラギノ角ゴ ProN", "Hiragino Kaku Gothic ProN", "メイリオ", Meiryo, "ＭＳ Ｐゴシック", "MS PGothic", sans-serif;
}

html {
   background-color: white;
   margin-left: auto;
   margin-right: auto;
}

#blockb {
   padding: 2%;
   width: 95%;
   float: center;
}

#blockc {
   padding: 2%;
   width: 95%;
   float: center;
}

#blockd{
   text-align: center;
}