.@{menu-prefix-cls}.@{menu-prefix-cls}-horizontal {
  border-right: none;

  > .@{menu-item-prefix-cls},
  .@{sub-menu-prefix-cls} {
    display: inline-block;
  }

  .@{sub-menu-prefix-cls}-title,
  .@{menu-item-prefix-cls} {
    padding: 0 20px;
  }

  .@{menu-item-prefix-cls}::after {
    transition: @transition-base;
    position: absolute;
    bottom: -1px;
    left: 50%;
    content: '';
    display: inline-block;
    height: 0;
    width: 0;
  }

  .@{menu-item-prefix-cls}-active::after {
    left: 0;
    width: 100%;
    height: 3px;
    background: @primary-color;
  }
}

.@{sub-menu-prefix-cls}-pop-list {
  background: white;
  border-radius: @border-radius-large;
  box-shadow: @shadow-base;
  margin-top: 1px;

  .@{menu-item-prefix-cls},
  .@{menu-item-group-prefix-cls}-title,
  .@{sub-menu-prefix-cls}-title, {
    padding: 0 16px;
  }

  .@{menu-item-group-prefix-cls} {
    > .@{menu-item-prefix-cls},
    .@{sub-menu-prefix-cls}-title, {
      padding-left: 0 16px 0 28px;
    }
  }

  .@{sub-menu-prefix-cls} {
    position: relative;

    &-title {
      position: relative;
      overflow: visible;
    }

    &-container {
      overflow: visible;
    }

    &-child-menu-container {
      position: absolute;
      left: 100%;
      top: 0;
      padding-left: 10px;
    }

    &-child-menu {
      background: white;
      border-radius: @border-radius-large;
      box-shadow: @shadow-base;
    }
  }

  .@{menu-item-prefix-cls}-active {
    background: @primary-color-choosed;
  }
}