<template>
  <div ref="ref1" class="${activeRef === ref1 ? 'active' : ''}" click.trigger="setRef(ref1)">one</div>
  <div ref="ref2" class="${activeRef === ref2 ? 'active' : ''}" click.trigger="setRef(ref2)">two</div>
  <div ref="ref3" class="${activeRef === ref3 ? 'active' : ''}" click.trigger="setRef(ref3)">three</div>
</template>