tb-step {
  display: flex;
}

.tb-step-item {
  position: relative;
  flex: 1;
}

.tb-step-item:last-child .tb-step-item-line {
  display: none;
}

.tb-step-item.tb-complete .tb-step-item-line {
  border-top-color: #15bd9a;
}

.tb-step-item.tb-complete .tb-step-item-icon {
  background-color: #15bd9a;
}

.tb-step-item.tb-current .tb-step-item-line {
  border-top-style: dashed;
}

.tb-step-item.tb-current .tb-step-item-icon {
  background-color: #1296db;
}

.tb-step-item.tb-waiting .tb-step-item-line {
  border-top-style: dashed;
}

.tb-step-item.tb-waiting .tb-step-item-icon {
  background-color: #bbbec4;
}

.tb-step-item.tb-waiting .tb-step-item-content {
  opacity: .8;
}

.tb-step-item-header {
  position: relative;
  margin-bottom: 1em;
}

.tb-step-item-icon {
  width: 1.6em;
  height: 1.6em;
  border-radius: 50%;
  position: relative;
  text-align: center;
  line-height: 1.6em;
  color: #fff;
  font-weight: 500;
}

.tb-step-item-line {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  border-top: 1px solid #dddee1;
}

.tb-step-item-content {
  padding-right: 15px;
}

.tb-step-title {
  font-weight: 500;
  margin: 0;
  font-size: 1.2em;
}

.tb-step-title > small {
  font-weight: normal;
  opacity: .8;
}

.tb-step-content {
  font-weight: normal;
  margin: 0;
}