<!DOCTYPE HTML> <html> <head> <title>Pixel rounding testcase</title> <style type="text/css"> html, body { margin: 0; border: none; padding: 0; } div { display: table; position: absolute; } </style> </head> <body> <!-- one border --> <div style="top: 10px; left: 10px; width: 10.5px; border-top: 10px solid green"></div> <div style="top: 10px; left: 30px; height: 10px; border-right: 10.5px solid green"></div> <div style="top: 10px; left: 50px; width: 10.5px; border-bottom: 10px solid green"></div> <div style="top: 10px; left: 70px; height: 10px; border-left: 10.5px solid green"></div> <!-- two adjacent borders --> <div style="top: 10px; left: 90px; border-top: 10px solid green; border-right: 10.5px solid green"></div> <div style="top: 10px; left: 110px; border-bottom: 10px solid green; border-right: 10.5px solid green"></div> <div style="top: 10px; left: 130px; border-top: 10px solid green; border-left: 10.5px solid green"></div> <div style="top: 10px; left: 150px; border-bottom: 10px solid green; border-left: 10.5px solid green"></div> <!-- two opposite borders --> <div style="top: 10px; left: 170px; height: 10px; border-left: 5.5px solid green; border-right: 5px solid green;"></div> <div style="top: 10px; left: 190px; height: 10px; border-left: 5px solid green; border-right: 5.5px solid green;"></div> <div style="top: 10px; left: 210px; width: 10.5px; border-top: 5px solid green; border-bottom: 5px solid green"></div> <!-- three borders --> <div style="top: 10px; left: 230px; border-top: 5px solid green; border-right: 10.5px solid green; border-bottom: 5px solid green"></div> <div style="top: 10px; left: 250px; border-top: 5px solid green; border-left: 10.5px solid green; border-bottom: 5px solid green"></div> <div style="top: 10px; left: 270px; border-left: 5px solid green; border-right: 5.5px solid green; border-bottom: 10px solid green"></div> <div style="top: 10px; left: 290px; border-left: 5.5px solid green; border-right: 5px solid green; border-bottom: 10px solid green"></div> <div style="top: 10px; left: 310px; border-left: 5px solid green; border-right: 5.5px solid green; border-top: 10px solid green"></div> <div style="top: 10px; left: 330px; border-left: 5.5px solid green; border-right: 5px solid green; border-top: 10px solid green"></div> <!-- four borders --> <div style="top: 10px; left: 350px; border-top: 5px solid green; border-right: 5.5px solid green; border-bottom: 5px solid green; border-left: 5px solid green"></div> <div style="top: 10px; left: 370px; border-top: 5px solid green; border-right: 5px solid green; border-bottom: 5px solid green; border-left: 5.5px solid green"></div> <!-- border around space --> <div style="top: 30px; left: 10px; border: 10px solid green; height: 20px; width: 20.5px"></div> </body> </html>