gistfile1.css

h3 {
  background: #efefef;
  border: 1px solid #ccc;
  padding: 1em;
  width: 600px;
}
.filter_text {
  float: left;
  line-height: 30px;
  margin-right: 10px;
}
h3 form {
  float: left;
  background: pink;
}
input[type=submit] {
  border: 1px solid #ccc;
  height: 30px;
  background: #000;
  color: #fff;
}