Table related table, thead, tbody, tfooter, tr, th, td tags all have specific display attributes and are not blocks. Roughly setting blocks will lead to nesting disorder
There is no need to use display:block, td, th, tr, etc. are all arranged in a fixed form. As for the black lines, you can use IE's style viewer to see if there is something wrong.
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Table related table, thead, tbody, tfooter, tr, th, td tags all have specific display attributes and are not blocks.
Roughly setting blocks will lead to nesting disorder
See if the border attribute is added
There is no need to use display:block, td, th, tr, etc. are all arranged in a fixed form. As for the black lines, you can use IE's style viewer to see if there is something wrong.