iview/styles/components/tooltip.less

@tooltip-prefix-cls: ~"@{css-prefix}tooltip";
@tooltip-max-width: 250px;
@tooltip-arrow-width: 5px;
@tooltip-distance: @tooltip-arrow-width - 1 + 4;

.@{tooltip-prefix-cls} {
    display: inline-block;

    &-popper{
        display: block;
        visibility: visible;
        font-size: @font-size-small;
        line-height: @line-height-base;
        position: absolute;
        z-index: @zindex-tooltip;
    }

    &-inner{
        max-width: @tooltip-max-width;
        min-height: 34px;
        padding: 8px 10px;
        color: @tooltip-color;
        text-align: left;
        text-decoration: none;
        background-color: @tooltip-bg;
        border-radius: @border-radius-small;
        box-shadow: @shadow-base;
    }

    &-arrow{
        position: absolute;
        width: 0;
        height: 0;
        border-color: transparent;
        border-style: solid;
    }

    &-placement-top,
    &-placement-top-start,
    &-placement-top-end {
        padding: @tooltip-arrow-width 0 @tooltip-distance 0;
    }
    &-placement-right,
    &-placement-right-start,
    &-placement-right-end {
        padding: 0 @tooltip-arrow-width 0 @tooltip-distance;
    }
    &-placement-bottom,
    &-placement-bottom-start,
    &-placement-bottom-end {
        padding: @tooltip-distance 0 @tooltip-arrow-width 0;
    }
    &-placement-left,
    &-placement-left-start,
    &-placement-left-end {
        padding: 0 @tooltip-distance 0 @tooltip-arrow-width;
    }

    &-placement-top &-arrow,
    &-placement-top-start &-arrow,
    &-placement-top-end &-arrow {
        bottom: @tooltip-distance - @tooltip-arrow-width;
        border-width: @tooltip-arrow-width @tooltip-arrow-width 0;
        border-top-color: @tooltip-bg;
    }

    &-placement-top &-arrow {
        left: 50%;
        margin-left: -@tooltip-arrow-width;
    }

    &-placement-top-start &-arrow {
        left: 16px;
    }

    &-placement-top-end &-arrow {
        right: 16px;
    }

    &-placement-right &-arrow,
    &-placement-right-start &-arrow,
    &-placement-right-end &-arrow {
        left: @tooltip-distance - @tooltip-arrow-width;
        border-width: @tooltip-arrow-width @tooltip-arrow-width @tooltip-arrow-width 0;
        border-right-color: @tooltip-bg;
    }

    &-placement-right &-arrow {
        top: 50%;
        margin-top: -@tooltip-arrow-width;
    }

    &-placement-right-start &-arrow {
        top: 8px;
    }

    &-placement-right-end &-arrow {
        bottom: 8px;
    }

    &-placement-left &-arrow,
    &-placement-left-start &-arrow,
    &-placement-left-end &-arrow {
        right: @tooltip-distance - @tooltip-arrow-width;
        border-width: @tooltip-arrow-width 0 @tooltip-arrow-width @tooltip-arrow-width;
        border-left-color: @tooltip-bg;
    }

    &-placement-left &-arrow {
        top: 50%;
        margin-top: -@tooltip-arrow-width;
    }

    &-placement-left-start &-arrow {
        top: 8px;
    }

    &-placement-left-end &-arrow {
        bottom: 8px;
    }

    &-placement-bottom &-arrow,
    &-placement-bottom-start &-arrow,
    &-placement-bottom-end &-arrow {
        top: @tooltip-distance - @tooltip-arrow-width;
        border-width: 0 @tooltip-arrow-width @tooltip-arrow-width;
        border-bottom-color: @tooltip-bg;
    }

    &-placement-bottom &-arrow {
        left: 50%;
        margin-left: -@tooltip-arrow-width;
    }

    &-placement-bottom-start &-arrow {
        left: 16px;
    }

    &-placement-bottom-end &-arrow {
        right: 16px;
    }
}