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Why do some metas have /> and some metas just end with >
This is a single tag. The last line can be added or not. There are many such tags, such as <br> <hr> You can write it as <br /> /<hr/> plus / is a tag Standards will not affect anything if they are not added
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
This is a single tag. The last line can be added or not. There are many such tags, such as <br> <hr> You can write it as <br /> /<hr/> plus / is a tag Standards will not affect anything if they are not added