<style lang="scss" scoped>

 ::v-deep .textareaDeep  .el-textarea__inner {
  border: none !important;

box-shadow: none !important;

padding: 0px; 

}

</style>

//添加类名 

<el-input
      class="textareaDeep"
        type="textarea"
        :rows="5"
        v-model="form.scrap">
      </el-input>

//效果

//去除前