.e-tooltip[x-placement=top] [e-arrow] {
    left: 50%;
    margin-left: -2px;
}
.e-tooltip[x-placement^=top] [e-arrow] {
    top: 99%;
}
.e-tooltip[x-placement^=top] .e-tooltip-arrow-content {
    box-shadow: 0px 0px 20px 0px rgba(0, 0, 0, 0.1);
}
.e-tooltip .e-tooltip-inner{
    color: #fff;
    font-size: 14px;
    line-height: 21px;
}
.e-tooltip .e-tooltip-arrow-content {
    position: absolute;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 6px 6px 0;
    border-color: rgba(0, 0, 0, 0.75) transparent transparent transparent;
}
.e-tooltip [e-arrow] {
    position: absolute;
    display: block;
    width: 13.07106781px;
    height: 13.07106781px;
    overflow: hidden;
    background: 0 0;
    pointer-events: none;
}
.e-tooltip {
    position: absolute;
    display: block;
    padding: 6px 8px;
    opacity: 0;
    transition: opacity 0.3s ease;
    /* 过渡效果，透明度在0.3秒内变化 */
    z-index: 999;
    /* 提示框位于最上层 */
    max-width: 409px;
    height: auto;
    background: rgba(0, 0, 0, 0.75);
    box-shadow: 0px 0px 20px 0px rgba(0, 0, 0, 0.1);
    border-radius: 2px;
}
.e-tooltip.is-show{
    opacity: 1;
}