body {
  margin: 0;
  font-size: 16px;
  font-family: 'M PLUS 1p', YuGothic, sans-serif;
}
.top {
  width: 100%;
  text-align: left;
  background-color: #397edd;
}
.top img {
  width: 100px;
}
.main {
  max-width: 800px;
  margin: 4px auto;
  padding: 4px;
}
h1 {
  font-size: 1.5em;
  text-align: center;
}

.submit {
  text-align: center;
}
.submit input {
  margin: 20px 10px;
  padding: 2px 20px;
  border: medium solid #0000002e;
  border-radius: 20px;
  font-size: 15px;
  cursor: pointer;
}
.submit input:first-of-type {
  background: #397edd;
  color: #fff;
}
.submit input:nth-child(n+2) {
  background: rgb(240, 240, 240);
  color: rgb(0, 0, 0);
}

.notice {
  font-size: small;
}

@media (min-width: 768px) {
  .show_sp {
    display: none;
  }
}

@media (max-width: 767px) {
  body {
    font-size: 12px;
  }  
  .main {
    margin: 0;
  }
}