h2 {
  clear: both;
  border-top: 1px solid #ccc;
  border-bottom: 1px solid #ccc;
  background: #e3e3e3;
  padding: 3px;
  cursor: pointer;
}

.example {
  margin-bottom: 1em;
  padding: 5px;
  border: 1px solid #ccc;
  width: 35%;
  float: left;
  margin-right: 15px;
}
.domtree, .domsource {
  float: right;
  width:60%;
  border: 1px solid #e3e3e3;
  padding: 5px;
  margin-bottom: 1em;
}
#myid {
  margin-top: 1em;
}
.example h3 {
  margin: 0;
  cursor: pointer;
}

.example .content {
  margin-top: 1em;
}
.example .content input {
  display: block;
  margin: .25em 0 0 40px;
}
.sample-code {
  float: left;
  clear: left;
  color: #070;
  margin-top: .5em;
}

.left {
  float: left;
  padding-right: 10px;
}
.clear-left {
  clear: left;
}
label {
  display: block;
}