Figure 1: My Smart TOC configuration Figure 2: Bug GIF Just look at the GIF. PS:On the same website of Edge 128.0.2739.42, the bug did not appear and everything went as usual The URL where the bug occurred(Currently, the bug has been found only on this website): https://javaguide.cn/java/basis/java-basic-questions-02.html My Browser: Chrome 128.0.6613.114(newest) (x64) My OS : Windows 11 23H2