vue3.0报错::v-deep usage as a combinator has been deprecated. Use :deep(＜inner-selecto

vue3.0版本

修改 elemeng-plus样式

::v-deep .el-menu--horizontal {
  border-bottom: 0 ;
}

换成下面：

::v-deep(.el-menu--horizontal) {
  border-bottom: 0 ;
}