frontend/src/components/Icon.vue

<template>
  <div class="icon" :title="title ? title : ''" @click="$emit('click')">
    <span>{{unicode}}</span>
    <ripple :color="ripple || ''"></ripple>
  </div>
</template>

<script>
import Ripple from '@/components/Ripple'

export default {
  components: { Ripple },
  props: ['unicode', 'title', 'ripple']
}
</script>

<style lang="scss" scoped>
@import '~@/style/theme.scss';

.icon {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, .8);
  padding: 8px;
  border-radius: 100px;
  min-width: 28px;
  min-height: 28px;
  width: 28px;
  height: 28px;
  user-select: none;
  cursor: pointer;
  text-align: center;
  font-family: 'iconfont', sans-serif;
  font-size: 0;
  color: $icon-normal-color;
  transition: all 0.2s;
  overflow: hidden;

  & > span {
    font-size: 24px;
  }

  &:hover {
    opacity: 0.8;
    background: white;
  }

  &:active {
    color: darken($icon-hover-color, 10);
  }
}
</style>