form.form_tbb {
  display: block;
  width: 560px;
  background: #fff;
  border: 1px solid #000;
}
/* float fix */
form.form_tbb:after {
  content: ".";
  display: block;
  height: 0;
  clear: both;
  visibility: hidden;
}
  /* headlines */
  form.form_tbb div.headline {
    width: 391px;
    text-align: left;
    float: right;
  }
    form.form_tbb div.headline h3 {
      margin-top: 12px;
      margin-bottom: 8px;
      font-size: 140%;
      color: #FF6600;
    }
    form.form_tbb div.headline h4 {
      margin-top: 12px;
      font-size: 100%;
    }
    form.form_tbb div.headline h5 {
      margin-top: 12px;
      font-weight: normal;
      font-size: 100%;
    }
  /* explanations */
  form.form_tbb div.explanation {
    margin-right: 12px;
    padding: 8px;
    width: 140px;
    float: left;
    background: #FFBF97;
    border-right: 1px solid #000;
    font-size: 85%;
  }
  /* controls */
  form.form_tbb label {
    display: inline-block;
    width: 120px;
    margin-top: 8px;
    margin-right: 20px;
  }
    form.form_tbb label.sub, form.form_tbb label.sub_half {
      margin-left: 144px;
      width: 70px;
    }
  form.form_tbb input {
    width: 220px;
    border: none;
    border-bottom: 1px solid #000;
  }
    form.form_tbb input.sub, form.form_tbb input.sub_half {
      width: 124px;
    }