<!DOCTYPE html> <!-- This test assumes that the document is 800px wide by 1000px high, as documented in the readme. In particular, it assumes that height > width. --> <html style="margin: 0; padding: 0; border: none; overflow: hidden"> <body style="margin: 0; padding: 0; border: none"> <div style="position: fixed; height: 100%; background: green"> <img src="solidblue.png" style="height: 100%; visibility: hidden;"> </div> </body> </html>