问题描述
我在许多MUI代码中看到,他们在其Reaction样式的组件中使用伪选择器。我想我会试着自己做,但我做不到。我不确定我做错了什么,或者这是否可能。
我正在尝试制作一些CSS,以根据固定的标头来偏移此元素。
import React from 'react';
import { createStyles, WithStyles, withStyles, Typography } from '@material-ui/core';
import { TypographyProps } from '@material-ui/core/Typography';
import GithubSlugger from 'github-slugger';
import Link from './link';
const styles = () =>
createStyles({
h: {
'&::before': {
content: 'some content',
display: 'block',
height: 60,
marginTop: -60
}
}
});
interface Props extends WithStyles<typeof styles>, TypographyProps {
children: string;
}
const AutolinkHeader = ({ classes, children, variant }: Props) => {
// I have to call new slugger here otherwise on a re-render it will append a 1
const slug = new GithubSlugger().slug(children);
return (
<Link to={`#${slug}`}>
<Typography classes={{ root: classes.h }} id={slug} variant={variant} children={children} />
</Link>
);
};
export default withStyles(styles)(AutolinkHeader);
推荐答案
我发现内容属性需要使用双引号,如下所示
const styles = () =>
createStyles({
h: {
'&::before': {
content: '"some content"',
display: 'block',
height: 60,
marginTop: -60
}
}
});
然后一切都按预期进行