.sp-only {
  display: none;
}

body {
  background: #F6F6F6;
}

header {
  padding: 20px;
  background: #000;
}

header img {
  display: table;
  margin: 0 auto;
}

main {
  margin: 0 auto;
  padding: 0 20px;
  max-width: 800px;
}

h1 {
  margin: 80px 0 56px;
  text-align: center;
  font-size: 28px;
  font-weight: bold;
  line-height: 1.5;
}

.content p:nth-child(n+2) {
  margin-top: 20px;
}

.ttl {
  font-weight: bold;
}

.info {
  margin: 40px auto;
  padding: 40px 30px;
  max-width: 320px;
  background: #fff;
  box-shadow: 0 0 3px rgba(0,0,0,0.25);
}

.info img {
  display: block;
  margin: 0 auto;
}

.info a {
  display: table;
  margin: 24px auto;
  padding: 6px 24px;
  color: #fff;
  font-size: 14px;
  background: #000;
  border-radius: 5px;
}

.info p {
  width: 100%;
  font-size: 12px;
}

footer {
  padding: 10px 20px;
  background: #000;
}

footer p {
  text-align: center;
  color: #fff;
  font-size: 12px;
}

@media screen and (max-width:550px) {
  .sp-only {
    display: block;
  }
  
  h1 {
    margin: 40px 0;
    font-size: 20px;
  }

  .content p:nth-child(n+2) {
    margin-top: 24px;
  } 
}