边框由标题和主体两部分组成。背景采用背景色加角标定位，适应大部分宽高而不变形。

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效果图

效果演示

组件代码

组件包含了三部分：标题 主体 背景。

主体部分放了一个插槽，通过插槽将其他组件插入到当前组件中。

组件使用

<item8 title="item10我是小标题"></item8>

组件代码

<template>
  <div class="pageItemBody">
    <div class="title">
      <div class="line"></div>
      <p>我是小标题</p>
    </div>
    <div class="itemMain" :class="{itemMain2:!title}">
      <slot></slot>
    </div>
    <bg></bg>
  </div>
</template>

<script>
import bg from './bg.vue'

export default {
  name: "title",
  data() {
    return {}
  },
  components: {
    bg
  },
  props: {
    title: {
      type: String,
      default() {
        return '';
      }
    },
  },
  watch: {},
  mounted() {
    var that = this;
  },
}
</script>

<style lang="scss" scoped>
.pageItemBody {
  width: 100%;
  position: relative;
  height: 100%;
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
  flex-wrap: nowrap;
  flex-direction: column;
  z-index: 1;
  align-content: flex-start;

  .title {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    flex-wrap: nowrap;
    flex-direction: row;
    align-content: flex-start;

    .line {
      width: 5px;
      height: 36px;
      background: #5974BC;
    }

    p {
      font-size: 22px;
      font-family: Source Han Sans CN;
      font-weight: 400;
      color: #CBBAC3;
      margin-left: 12px;
    }
  }

}

.itemMain {
  position: relative;
  width: 100%;
  height: calc(100% - 36px);
}

.itemMain2 {
  position: relative;
  width: 100%;
  height: calc(100% - 0px);
}
</style>

背景组件

/**
* @Author: 858834013@qq.com
* @Name: pageItemBg
* @Date: 2023年05月19日
* @Desc: 页面组件背景
*/
<template>
  <div class="pageItemBg">
    <img class="topbgimg" src="./assets/topbgimg.png" alt="">
    <div class="left">
      <div class="dot1"></div>
      <div class="dot2"></div>
    </div>
    <div class="right">
      <div class="dot1"></div>
      <div class="dot2"></div>
    </div>
  </div>
</template>

<script>

export default {
  name: "pageItemBg",
}
</script>

<style lang="scss" scoped>
.pageItemBg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  bottom: 0;
  right: 0;
  z-index: -1;
  pointer-events: none; //避免div层被点击
  background: url("./assets/bg.png") no-repeat;
  background-size: 100% 100%;

  .topbgimg {
    right: 95px;
    position: absolute;
    top: 0;
    width: 139px;
  }

  .left {
    position: absolute;
    background: url("./assets/lineLeft.png") no-repeat;
    background-size: 100% 100%;
    width: 8px;
    height: calc(100% - 15px - 81px);
    top: 81px;
    left: 6px;

    .dot1 {
      width: 6px;
      height: 6px;
      background: #D5C1CC;
      position: absolute;
      left: 6px;
      top: 0;
    }
    .dot2 {
      width: 6px;
      height: 6px;
      background: #D5C1CC;
      position: absolute;
      left: 6px;
      bottom: 0;
    }
  }

  .right {
    position: absolute;
    background: url("./assets/lineRight.png") no-repeat;
    background-size: 100% 100%;
    width: 8px;
    height: calc(100% - 15px - 81px);
    top: 81px;
    right: 6px;
    .dot1 {
      width: 6px;
      height: 6px;
      background: #D5C1CC;
      position: absolute;
      right: 6px;
      top: 0;
    }
    .dot2 {
      width: 6px;
      height: 6px;
      background: #D5C1CC;
      position: absolute;
      right: 6px;
      bottom: 0;
    }
  }
}
</style>

更多边框组件

vue3 数据可视化大屏边框效果整理