.motion {
  transition: all 0.3s;
}

.item {
  display: inline-block;
  box-sizing: border-box;
  margin: 0;
  padding: 0 16px;
  overflow: hidden;
  line-height: 31px;
  position: relative;

  &:hover {
    background: rgba(255, 0, 0, 0.1);
  }

  &::after {
    content: '';
    border-bottom: 1px solid gray;
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
  }

  button {
    vertical-align: text-top;
    margin-right: 8px;
  }
}