在网格上创建onHover项目组件MaterialUI时遇到问题

Question

我正在创建一个网格布局，其中嵌套了网格组件。但是，由于某些原因，我不理解，在网格项组件中使用内联样式是不起作用的。请帮忙，我在ReactJS中使用MaterialUI还是个新手。网格封装在仅在移动设备中显示的隐藏组件中。

我试图实现的是网格项在悬停

以下是我所做的：

<Hidden mdUp='hide'>
<Grid
container
xs={12}
style={{
fontFamily: 'Old Newspaper',
background: '#f49275',
'&:hover': { background: 'black' },
marginLeft: '4px',
marginRight: '4px',
}}
>
<Grid
item
xs={4}
style={{
justifyContent: 'center',
display: 'flex',
}}
>
<a href='#'>
&diams; Github &diams;
</a>
</Grid>
<Grid
item
xs={4}
style={{ justifyContent: 'center', display: 'flex' }}
>
<a
href='#'
target='_blank'
>
&diams; LinkedIn &diams;
</a>
</Grid>
<Grid
item
xs={4}
style={{ justifyContent: 'center', display: 'flex' }}
>
<a
href='#'
target='_blank'
>
&diams; Codewars &diams;
</a>
</Grid>
</Grid>
</Hidden>

Answer 1

要在网格项上获得悬停样式，必须在网格项中添加悬停样式。并且，您不能以内联CSS的方式在元素上添加悬停样式。为网格项指定className，然后在这些网格项上添加悬停样式。

import React from "react";
import { makeStyles } from "@material-ui/core/styles";
import Grid from "@material-ui/core/Grid";
import { Hidden } from "@material-ui/core";
const useStyles = makeStyles((theme) => ({
item:{
color:'#fff',
justifyContent: "center",
display: "flex",
'&:hover':{
'&>a':{
color:'green'
}
}
}
}));
export default function SpacingGrid() {
const classes = useStyles();

return (
<Hidden mdUp="hide">
<Grid
container
className={classes.container}
xs={12}
style={{
fontFamily: "Old Newspaper",
background: "#f49275",
marginLeft: "4px",
marginRight: "4px"
}}
>
<Grid
item
xs={4}
className={classes.item}
>
<a href="#">&diams; Github &diams;</a>
</Grid>
<Grid item xs={4} className={classes.item}>
<a href="#" target="_blank">
&diams; LinkedIn &diams;
</a>
</Grid>
<Grid item xs={4} className={classes.item}>
<a href="#" target="_blank">
&diams; Codewars &diams;
</a>
</Grid>
</Grid>
</Hidden>
);
}

codesandbox链接：-https://codesandbox.io/s/o8b52

你能详细说明你对在网格项中使用内联样式的怀疑吗。