* {
  margin: 0;
  padding: 0;
}
html {
  background-color: #fff;
  color: #111;
        font-family: "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", Osaka, "ＭＳ Ｐゴシック", tahoma, verdana, sans-serif;
  font-size: 14px;
}
body {
  margin: auto;
  width: 700px;
  padding-top: 50px;
}
p {
  padding: 3px;
  line-height: 1.5;
}
.center {
  margin: auto;
  text-align: center;
}
a {
  color: #0aa;
  text-decoration: none;
}
a:hover {
  color: #3cc;
}
h1 {
  color: #0aa;
  text-align: center;
}
h2 {
  font-size: 16px;
  color: #666;
  font-weight: bold;
  text-align: center;
}
.flex {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
}
nav div {
  width: 30%;
}
nav iframe {
  width: 30%;
}
ul {
  list-style: none;
}
.soon {
    text-decoration: line-through;
    color: #777 !important;
}
.soon:hover  {
    text-decoration: line-through;
  color: #999 !important;
}
.title {
    color: #333;
    font-weight: bold;
    padding: 5px;
    margin: 5px;
}

main {
  width: 100%;
  background-image: url(/layoutbottom.png);
  background-position: bottom center;
  background-repeat: no-repeat;
  padding-bottom: 300px;
}

footer {
  text-align: center;
}

blockquote {
    font-weight: bold;
    margin: auto;
    text-align: center;
}
iframe {
  display: block;
  text-align: center;
  margin: auto;
  border: 1px solid;
}