body {
  background-color: #E6ECFF;
  margin-left: 10%;
  margin-right: 10%;
}

.qi {
  border-collapse: collapse;
  border-bottom: 1px #BFCFFF solid;
}

.qi td, .qi th {
  border-left: 1px #BFCFFF solid;
  border-right: 1px #BFCFFF solid;
}

.qi th {
  padding-right: 0.2em;
  padding-left: 0.2em;
}
.qi td {
  text-align: center;
}

.qi .r0 th {
  border-top: 1px #BFCFFF solid;
  border-bottom: 1px #BFCFFF solid;
}

.qi .r1 {
  background-color: #F0F4FF;
}

.qi .r1 th, .qi .r2 th {
  text-align: right;
  width: 8em;
}

p, pre {
  margin: 0;
  padding: 0;
}

h2 {
  margin-bottom: 0;
  padding-bottom: 0;
}

div.example {
  padding-top: 0.25em;
}

div:target h2 {
  color: #808080;
}

.example pre {
  background-color: #F0F4FF;
  border: 1px #BFCFFF solid;
  padding: 4px;
}