As shown in the picture, what is the implementation principle of clicking a button to pop up a custom box? Ask for guidance!
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<p style="position:absolute; top:0px; left:0px"></p>
Just set the position to absolute
It will appear on the page differently according to the top and left you set. Location
Modal box? Principle: Create a p
that is separated from the document flow
One implementation method is to use css positioning to create a p that is separated from the normal document flow, use javascript to achieve interaction and control styles, and use ajax to achieve data acquisition and transmission.
http://www.w3school.com.cn/cs...
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
