maestro-server/bootue

<span ref="trigger">
    <slot></slot>
    <transition :name="effect">
      <div ref="popover" v-if="show" :class="['tooltip',placement]">
        <div class="tooltip-arrow"></div>
        <div class="tooltip-inner">
          <slot name="content"><div v-html="content"></div></slot>
        </div>
      </div>
    </transition>
  </span>