tenfourfox/layout/reftests/css-gradients/linear-repeat-1d.html

<div style="background: -moz-linear-gradient(white, white 50px, black 50px, black 100px, white 100px, white 150px, black 150px, black 200px);
            background-size: 100px 200px; background-position: 0 -50px;
            width: 300px; height: 300px;"></div>