问题
I'm developing chrome extension, I want to make border radius and use radius border propery in css, but it boder in child elemement. My code html here :
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" style="border-radius:10px">
<head>
</head>
<body>
content here
</body>
</html>
I want border as picture below :
http://postimg.org/image/8ct4dcq93/
回答1:
Unfortunately, I don't think you can do it.
The frame around the popup page (highlighted in red in a graphics editor) is fully controlled by Chrome:

You can't change its shape / color, just like you can't change normal Chrome chrome (pun intended).
来源:https://stackoverflow.com/questions/27899635/how-to-make-border-radius-in-popup-chrome-extension