body {
  font: 1.2em;
  font-family: "Hiragino Kaku Gothic Pro W3", "Hiragino Kaku Gothic Pro", Osaka,
    Meiryo, farial, helvetica, clean, sans-serif;
  max-width: 43em;
  margin: auto;
  background-image: url('gradient.png');
  background-repeat: repeat-x;
  background-position: top center;
  background-size: auto;
}
img {
  display: block;
  margin: auto;
  max-width: 20em;
  border: 1px solid #808080;
}
img:hover {
  border: 1px solid #000000;
}
.m_box {
  border: 1px solid #808080;
  margin: 1em;
  background-color: #fff;
}
.m_box_red {
  border: 1px solid #000000;
  margin: 1em;
  background-color: #f5f5f5;
}
a {
  color: #000000;
  text-decoration: underline;
}
.m_box_bar {
  background: #808080;
  color: #fff;
}
.m_box_bar_red {
  background: #000000;
  color: #fff;
}
h2 {
  margin-top: 0.001em;
  margin-bottom: 0.001em;
  margin-left: 0.25em;
  font-size: 1.1em;
}
h3 {
  margin-left: 0.3em;
  font-size: 1em;
  margin-top: 0.3em;
  margin-bottom: 0.1em;
  text-decoration: underline;
  text-align: center;
  font-weight: 700;
}
h2.m_box {
  background-color: #808080;
}
h2.box {
  background-color: #d3d3d3;
}
p {
  margin: 0.5em;
  margin-left: 1em;
  color: #000000b8;
}
.box {
  border: 1px solid #808080;
  color: #808080;
  margin: 1em;
}
.box_bar {
  background: #d3d3d3;
  color: #525252;
}

hr {
  display: block;
  height: 1px;
  border: 0;
  border-top: 1px solid #cccccc;
  margin: 1em 0;
  padding: 0;
}
