than the old scheme.)
[&:first-child]:overflow-hidden [&:first-child]:max-h-full"
，详情可参考一键获取谷歌浏览器下载
The grid lines on the visualization represent a tree structure underneath. Every region is a node. When a node splits, it creates four children. The root node covers the entire space. Leaf nodes (nodes with no children) hold the actual points.，更多细节参见下载安装 谷歌浏览器 开启极速安全的 上网之旅。
定弹出条件：看题目要的是「第一个 / ≥ / < / ≤ cur」，对照上文的弹出条件对应法则决定弹谁。