retina-dom-to-image/spec/resources/border/style.css

A fork of the dom-to-image library that outputs an image for higher DPI screens

#dom-node {
    font-size: 16px;
    width: 100px;
    height: 100px;
    background-color: red;
    border-color: black;
    border: solid;
    border-width: 10px 10.0px 0.625em 10px;
}