使用全局樣式，這樣會比較方便，樣式較多的情況下。

自定義組件

import { View} from "@tarojs/components";
import Taro from "@tarojs/taro";
import Component = Taro.Component;

interface IProps {}
interface IState {}
export default class SexDetailItem extends Component<IProps, IState> {
  static options = {
    addGlobalClass: true
  }
  render() {
    return <View>
      <View className='remaining-seat at-row at-row__align--center'>
        <View className='reamining-title at-col at-col-3' >余</View>
        <View className='at-col at-col-3'>{2}</View>
      </View>
    </View>;
  }

}

main.tsx

 <View><SexDetailItem  /></View>