.tab__head {
  display: flex;
  align-items: center;
  overflow: hidden;
  overflow-x: auto
}
.tab__head-item {
  width: auto;
  white-space: nowrap
}
.tab__head-item button {
  font-size: 20px;
  line-height: 26px;
  padding: 14px;
  border: 1px solid #f1f1f1;
  transition: color .3s linear,background-color .3s linear;
  width: 100%;
  text-align: center
}
.tab__head-item button.is-active {
  color: #039a9f;
  background-color: #f6f6f6
}
.tab__body-item:not(.is-active) {
  display: none
}
.tab__body-item.is-active {
  animation-name: fadeIn;
  animation-duration: 1s;
  animation-fill-mode: both
}