CSS 1px border stroke breaks around border radius

Question

This is for web dev. When using a 1px border radius on a circle or a square with really rounded corners, the stroke starts to break. If we were to change it to 2px\'s it wou

Answer 1

There isn't much you can do about this, unfortunately. That's up to the browser to determine how to render the sub-pixels that make up a curved 1px border. Some browsers will antialias it nicely, others will not.

The only reliable solution is to use images, which is so... 90s. Or something XD Point is, we shouldn't have to do things like that, but sometimes we have to either settle for imperfect rendering, or use outdated methods.

Answer 2

This is common when having a background and a border specified. The only way to fix this would be to have two separate elements, one with the background color and one with the border color with padding equal to the border-width.

See this article for a better explanation.

Answer 3

add box-shadow: 0 0 1px 0px white inset, 0 0 1px 0px white; that will give you the anti-aliasing you're looking for.