body {
    font-family: "Noto Sans JP","ヒラギノ角ゴ Pro W3","Hiragino Kaku Gothic Pro",HiraKakuProN-W3,"游ゴシック","Yu Gothic","ＭＳ Ｐゴシック","MS PGothic",sans-serif;
}
.title_welcome{
  color: #636b6f;
  text-decoration: none;
}
.cover_button{
  margin: 10px 0;
}
.cover_button .row:nth-child(2){
  margin: 10px;
}

.cover_button .row .btn-info{
  color: #fff;
}