.b {
  color: #ff0000;
  margin-left: 24px;
  background-color: #ffff00;
}

.t {
  border: 1px dotted #000000;
  background-color: #e0e0e0;
  padding-bottom: 4px;
  margin-bottom: 4px;
}

.t span {
  display: block;
  background-color: #808080;
  color: #ffffff;
  font-weight: bold;
  padding: 4px;
  margin-bottom: 4px;
}

.f {
  margin: 0 4px 0 4px;
  border: 1px solid #808080;
  background-color: #e0e0e0;
  padding: 4px;
}

.x {
  color: #ff0000;
}

.x img {
  margin-bottom: -4px;
}