ASSEMBLY

material ui common styles

const useStyles = makeStyles({
  root: {
    color: 'red',
    '& p': {
      color: 'green',
      '& span': {
        color: 'blue'
      }
    }
  },
});

material ui common styles

// Re-export with a default theme
import { makeStyles } from '@material-ui/core/styles';

// Original module with no default theme
import { makeStyles } from '@material-ui/styles';

create a common style material ui style

const styles = (theme) => ({
  cardContainer: {
    position: 'relative',
    width: '50%',
    padding: theme.spacing.unit / 2,
  },
  cardOuter: {
    height: '100%',
    width: '100%',
    textAlign: 'start',
  },
  card: {
    width: '100%',
    background: theme.palette.backgrounds.card.off,
  },
  cardOn: {
    background: theme.palette.backgrounds.card.on,
  },
  cardUnavailable: {
    background: theme.palette.backgrounds.card.disabled,
  },
  cardContent: {
    display: 'flex',
    flexWrap: 'wrap',
    minHeight: 98,
    height: 98,
    [theme.breakpoints.down('sm')]: {
      minHeight: 74,
      height: 74,
    },
    padding: `${theme.spacing.unit * 1.5}px !important`,
  },
});

export default styles;

create a common style material ui style

const styles = theme => ({
  ...card(theme),
  grid: {
    height: '100%',
    width: 'fit-content',
    paddingLeft: theme.spacing.unit * 2,
    paddingRight: theme.spacing.unit * 2,
    flexWrap: 'nowrap',
    overflowY: 'hidden',
  },
  name: {
    overflow: 'hidden',
    textOverflow: 'ellipsis',
    fontSize: '1.12rem',
    fontColor: theme.palette.text.main,
    [theme.breakpoints.down('sm')]: {
      fontSize: '0.9rem',
    }
  },
  state: {
    textOverflow: 'ellipsis',
    margin: '0 auto',
    marginTop: theme.spacing.unit / 2,
    fontSize: '1.0rem',
    fontColor: theme.palette.text.light,
    [theme.breakpoints.down('sm')]: {
      fontSize: '0.8rem',
    }
  },
  alarmArmedHome: {
    background: theme.palette.backgrounds.card.alarm.home,
  },
  alarmArmedAway: {
    background: theme.palette.backgrounds.card.alarm.away,
  },
  alarmTriggered: {
    background: theme.palette.backgrounds.card.alarm.triggered,
  },
  icon: {
    margin: '0 auto',
    color: theme.palette.text.icon,
    fontSize: '2.7rem',
    [theme.breakpoints.down('sm')]: {
      fontSize: '1.7rem',
    }
  },
});

how to custom style material ui

import * as React from 'react';
import { StyledEngineProvider } from '@mui/material/styles';
import Box from '@mui/material/Box';

export default function GlobalCssPriority() {
  return (
    <StyledEngineProvider injectFirst>
     <Box className="example"></Box>
    </StyledEngineProvider>
  );
}

// Styled Engine Provider uses prop injectFirst, which will inject the
// styles at the top precedence and any plain CSS class can be used to
// style the element in question. 

how to use css in material ui

import React from 'react';
import Button from '@material-ui/core/Button';
import './PlainCssButton.css';

export default function PlainCssButton() {
  return (
    <div>
      <Button>Default</Button>
      <Button className="button">Customized</Button>
    </div>
  );
}

how to custom style material ui

import * as React from 'react';
import Box from '@mui/material/Box';

export default function GlobalCssPriority() {
  return (
   <>
     <Box sx={{
       width: "30px", 
       height: "30px", 
       border: "1px solid red"}}>
       marginLeft: "10px"
       </Box>
   </>
  );
}

// sx prop can be used to custom style or override the default syles
// of mui. Inside the object properties can be defined. 
// just remember to use camel case for properties with more than
// one word.