1、如果你写js的时候,点击了一下发现hidden的内容覆盖了下面哪一行,其实是你的height固定死了,用Minheight就可以
2、material-ui的hover模式写法
const styles = { timeColumn: { 160, wordWrap: 'break-word', }, binaryUrlColumn: { maxWidth: 120, textOverflow: 'ellipsis', overflow: 'hidden', }, moreVertColumn: { 32, }, tripRow: { '& $moreButton': { visibility: 'hidden', }, '&:hover $moreButton': { visibility: 'visible', }, }, tripTime: { whiteSpace: 'nowrap', }, moreButton: { 32, height: 32, margin: 0, cursor: 'pointer', }, };