Rounded cornes (border radius) Safari issue

.activity_rounded  {
    -webkit-border-radius: 50%;
    -moz-border-radius: 50%;
    border-radius: 50%;
    -khtml-border-radius: 50%;
    border: 3px solid #fff;
    behavior: url(css/PIE.htc);
}
<img src="img/demo/avatar_3.jpg" class="activity_rounded" alt="" />

This is my CSS & HTML. I want to make an image look like a circle. Everything works fine in IE8+, Google Chrome and Mozilla Firefox. But Safari is acting kinda strange. Here is a demo picture:

To illustrate the problem in Safari, let's begin with a plain image.

Here we have an image of 100px x 100px. Adding a border of 3px increases the element dimensions to 106px x 106px:

Now we give it a border radius of 20%:

You can see it starts cropping from the outer boundary of the element, not from the image itself.

Further increasing the magnitude to 50%:

And changing the border color to white:

You can now see how the issue arises.

Because of such behavior of the browser, when creating an image in a circle with a border, we have to make sure both the image and the border are given a border radius. One way to ensure this is to separate the border from the image by placing the image inside a container, and apply border radius to both of them.

<div class="activity_rounded"><img src="http://placehold.it/100" /></div>

.activity_rounded {
    display: inline-block;
    -webkit-border-radius: 50%;
    -moz-border-radius: 50%;
    border-radius: 50%;
    -khtml-border-radius: 50%;
    border: 3px solid #fff;
}

.activity_rounded img  {
    -webkit-border-radius: 50%;
    -moz-border-radius: 50%;
    border-radius: 50%;
    -khtml-border-radius: 50%;
    vertical-align: middle;
}

And now we have a nice circle border around the image on Safari.

See DEMO.

Seems this one works:

.wrap{
   -webkit-transform: translateZ(0);
   -webkit-mask-image: -webkit-radial-gradient(circle, white 100%, black 100%);
}

http://jsfiddle.net/qWdf6/82/

Try this by adding overflow: hidden; to the set of rules. This is an issue with all the webkit browsers:

.activity_rounded  {
    -webkit-border-radius: 50%;
     -khtml-border-radius: 50%;
       -moz-border-radius: 50%;
            border-radius: 50%;
    border: 3px solid #fff;
    behavior: url(css/PIE.htc);
    overflow: hidden;
}

Just simply use box-shadow if you don't care the old browsers.

.rounded {
  box-shadow: 0 0 0 10px pink;
}

Have you tried the longhand markup?

-webkit-border-top-left-radius 
-webkit-border-top-right-radius 
-webkit-border-bottom-left-radius 
-webkit-border-bottom-right-radius 

It seems like there are some bugs on using the short-hand notation with some versions of Safari.