@charset "utf-8";

* { 
  font-family: "Noto Sans JP", sans-serif; 
} 
body {
  max-width: 800px;
  margin-right: auto; 
  margin-left : auto;
}
h1, ul, p {
  color: #004aad;
}
p, ul {
  margin-top: 50px;
  font-size: 20px;
}

.btnB {
  border:double;
  display:block;
  border-radius: 10px;
  padding: 10px 20px;
  color: black;
  background: #e4e4e4;
  font-size: 16px;
  margin-top: 20px;
  margin-left: auto;
  margin-bottom: 20px;
  position: relative;
  top: -2px;
}

.btnB:hover {
  cursor: pointer;
  top: 1px;
  }


@media screen and (max-width: 640px) {
  body {
    margin: 0 5%;
  }
  h1 {
    font-size: 16px;
  }
  ul {
    font-size: 12px;
  }
  .btnB {
    font-size: 12px;
    padding: 8px;
  }
  img {
    width:100%;
    margin: 5% 0;
    }
}