如何在material-ui居中？

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

const useStyles = makeStyles({
  container: {
    display: 'flex',
    justifyContent: 'center',
    alignItems: 'center',
    height: '100vh',
  },
});

const CenteredComponent = () => {
  const classes = useStyles();

  return (
    <div className={classes.container}>
      {/* Your content here */}
    </div>
  );
};

export default CenteredComponent;

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

const useStyles = makeStyles({
  container: {
    display: 'grid',
    placeItems: 'center',
    height: '100vh',
  },
});

const CenteredComponent = () => {
  const classes = useStyles();

  return (
    <div className={classes.container}>
      {/* Your content here */}
    </div>
  );
};

export default CenteredComponent;

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

const useStyles = makeStyles({
  container: {
    position: 'relative',
    height: '100vh',
  },
  centeredElement: {
    position: 'absolute',
    top: '50%',
    left: '50%',
    transform: 'translate(-50%, -50%)',
  },
});

const CenteredComponent = () => {
  const classes = useStyles();

  return (
    <div className={classes.container}>
      <div className={classes.centeredElement}>
        {/* Your content here */}
      </div>
    </div>
  );
};

export default CenteredComponent;