# 样式常见问题

- ## 弹出层：顶部不固定

弹出层的标题栏应该用绝对定位固定在顶部，关闭按钮绝对定位固定在底部，滚动的不是弹出层，而应该是弹出层中间的盒子

<img title="" src="../assets/2023-10-29-01-09-01-f2c6f985326461a4a06457df402a0a68_file-read-654.png" alt="" width="305"><img title="" src="../assets/2023-10-29-01-13-29-590126967be0b99a0329d966423cd4d.jpg" alt="" width="296"><img src="../assets/2023-10-29-01-28-54-4a21305c14258e19dcf84a43516e859.jpg" title="" alt="" width="285">

- ## 错误定高 flex乱用

<img title="" src="../assets/2023-10-29-01-20-21-465dbdffe6f53022fb3f2deb620a7aa.jpg" alt="" width="433">