Testing negative outline-offset

Original: http://jsfiddle.net/leaverou/2DEAb/

by Jens Grochtdreis

CSS

html { background: white; }

body {
    width:300px;
    height:200px;
    margin:1em auto;
    background:slategray;
    border:10px solid darkslategray;
    outline: 1px dashed #fff;
    outline-offset:-20px;
}