javascript - Material -ui makeStyles : how to style by tag name?

Question

我想为所有 <p> 添加一条规则在当前组件中。我在任何地方都找不到有关如何按标签名称添加 CSS 规则的信息(material-ui 文档、Stack Overflow 等)。

不支持吗？

我正在尝试做这样的事情:

const useStyles = makeStyles((theme: Theme) =>
    createStyles({
        'p': {
            margin: 0,
        },
        someClass: {
            fontSize: 14,
        },
    })
);

编辑:

使用 Ryan 的解决方案有效，但会产生一个新问题:

import React from 'react';
import { makeStyles, Theme, createStyles } from '@material-ui/core';

const useStyles = makeStyles((theme: Theme) =>
    createStyles({
        root: {
            '& p': {
                margin: 0,
            },
        },
        // I want this rule to override the rule above. It's not possible in the current configuration, because `.root p` is more specific than `.title`
        // This problem originates from the fact that I had to nest the rule for `<p>` inside a CSS class
        title: {
            margin: '0 0 16px',
        },
    })
);

export default () => {
    const classes = useStyles({});

    return (
        <div className={classes.root}>
            <p className={classes.title}>My title</p>
            <p>A paragraph</p>
            <p>Another paragraph</p>
        </div>
    );
};

Answer 1

由于您希望将其作用于您的组件，因此您需要一个类来应用到您的组件(例如，下面示例中的 classes.root)。然后你可以定位所有p使用 & p 的元素.如果您需要覆盖 p组件中另一个 CSS 类的标签样式，您可以使用另一个嵌套规则来定位 p也具有该类的标签(例如示例中的 classes.title)。

import React from "react";
import { makeStyles } from "@material-ui/core/styles";

const useStyles = makeStyles(theme => ({
  root: {
    "& p": {
      margin: 0,
      "&$title": {
        margin: "0 0 16px"
      }
    }
  },
  title: {}
}));
export default function App() {
  const classes = useStyles();
  return (
    <div className="App">
      <p>This paragraph isn't affected.</p>
      <p>This paragraph isn't affected.</p>
      <div className={classes.root}>
        <p className={classes.title}>My title</p>
        <p>A paragraph</p>
        <p>Another paragraph</p>
      </div>
    </div>
  );
}

相关文档: https://cssinjs.org/jss-plugin-nested?v=v10.1.1#use--to-reference-selector-of-the-parent-rule