linear-repeat-1-ref.html
<div style="background: black; width: 300px; height: 50px;"></div>
<div style="background: white; width: 300px; height: 50px;"></div>
<div style="background: black; width: 300px; height: 50px;"></div>
<div style="background: white; width: 300px; height: 50px;"></div>
<div style="background: black; width: 300px; height: 50px;"></div>
<div style="background: white; width: 300px; height: 50px;"></div>
