<!DOCTYPE html>
<style>
    div {
        width: 200px;
        height: 150px;
        background-color: blue;
        -webkit-clip-path: inset(0px round 60%);
    }
</style>
<body>
    <p><a href="http://webkit.org/b/140127">Bug 140127</a> - [CSS Masking][CSS Shapes] Large corner radii use with inset() clip-path are not properly constrained</p>
    <p>The radii for this inset should be constrained in the same way that border-radii are constrained. If this happens correctly, you should see a blue ellipse.</p>
    <div></div>
</body>