vue中loding

<template>
  <div class="mf-loading-container" v-show="ifShow">
    <img src="static/img/loading01.gif">
  </div>
</template>

<script>
export default {
  name: "loading",
  props: {
    ifShow: {
      type: Boolean,
      default: false
    }
  }
};
</script>
<style lang="scss">
.mf-loading-container {
  position: fixed;
  top: ;
  bottom: ;
  left: ;
  right: ;
  background: rgba(, , , 0.5);
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  z-index: ;
  img {
    width: 40px;
    height: 40px;
    display: block;
  }
}
</style>