.head_msg {
  margin: 20px 0;
}

.sec_caution ul {
  margin: 30px 0;
}
.figure{
  margin-bottom: 50px;
}
.table_style-03.port {
  margin: 20px 0  10px 0;
}
.table_style-03.port tr th.port {
  width: 30%;
}
.table_style-03.port tr th.name {
  width: 15%;
}
.table_style-03.port tr td {
  word-break: break-all;
}

.table_style-03.port tr td:nth-child(2) {
  text-align: center;
}

.table_style-03.port tr:nth-child(odd) td {
  background: #fff;
}

.table_style-03.port tr:nth-child(even) td {
  background: #f6f6f6;
}

.table_style-08 {
  margin: 20px 0 60px;
}

.table_style-08.port tbody tr td:nth-child(4) {
  text-align: left;
}

.packetfilter_image {
  text-align: center;
}

.headline_03 {
  margin: 40px 0 10px;
}

.layout_section ol,
.layout_section ul {
  margin: 20px 30px;
}

.layout_section ol li {
  list-style: decimal;
}

.layout_section ul li {
  list-style: circle;
}

code {
  padding: 20px;
  margin: 20px;
  display: block;
  background: #000;
  color: #fff;
}

h5 {
  font-size: 16px;
  font-weight: bold;
  line-height: 1.2;
  margin: 20px 0;
}