How do you change a style of a child when hovering over a parent using material-ui jss styles
I'm using material-ui in react. Let's say I have this component with these styles
const useStyles = makeStyles(theme => ({
outerDiv: {
backgroundColor: theme.palette.grey[200],
padding: theme.spacing(4),
'&:hover': {
cursor: 'pointer',
backgroundColor: theme.palette.grey[100]
}
},
addIcon: (props: { dragActive: boolean }) => ({
height: 50,
width: 50,
color: theme.palette.grey[400],
marginBottom: theme.spacing(2)
})
}));
function App() {
const classes = useStyles();
return (
<Grid container>
<Grid item className={classes.outerDiv}>
<AddIcon className={classes.addIcon} />
</Grid>
</Grid>
);
}
I want to change the style of addIcon when hovering over outerDiv using the styles above.
Here's my example: https://codesandbox.io/s/trusting-mcnulty-b1gcd?fontsize=14&hidenavigation=1&theme=dark
Answer
Below is an example of the correct syntax ("& $addIcon" nested within &:hover).
import * as React from "react";
import { render } from "react-dom";
import { Grid, makeStyles } from "@material-ui/core";
import AddIcon from "@material-ui/icons/Add";
const useStyles = makeStyles(theme => ({
outerDiv: {
backgroundColor: theme.palette.grey[200],
padding: theme.spacing(4),
'&:hover': {
cursor: 'pointer',
backgroundColor: theme.palette.grey[100],
"& $addIcon": {
color: "purple"
}
}
},
addIcon: (props: { dragActive: boolean }) => ({
height: 50,
width: 50,
color: theme.palette.grey[400],
marginBottom: theme.spacing(2)
})
}));
function App() {
const classes = useStyles();
return (
<Grid container>
<Grid item className={classes.outerDiv}>
<AddIcon className={classes.addIcon} />
</Grid>
</Grid>
);
}
const rootElement = document.getElementById("root");
render(<App />, rootElement);
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