<!DOCTYPE HTML> <html> <head> <meta charset="utf-8"> <title>dashed border with non-integer radius</title> <style> .box { position: relative; width: 420px; height: 420px; } .mask { position: absolute; top: 0px; left: 0px; } table { border-collapse: separate; border-spacing: 10px; empty-cells: show; } td { border-style: dashed; border-radius: 24.01px; border-color: black; height: 120px; width: 120px; box-sizing: border-box; } .A { border-width: 1px; } .B { border-width: 2px; } .C { border-width: 6px; } .D { border-width: 8px; } .E { border-width: 16px; } .F { border-width: 24px; } .G { border-width: 32px; } .H { border-width: 48px; } .I { border-width: 60px; } </style> </head> <body> <div class="box"> <table> <tr><td class="A"></td><td class="B"></td><td class="C"></td></tr> <tr><td class="D"></td><td class="E"></td><td class="F"></td></tr> <tr><td class="G"></td><td class="H"></td><td class="I"></td></tr> </table> <img class="mask" src="border-dashed-radius-non-integer-filled-mask.png"> </div> <div class="box"> <table> <tr><td class="A"></td><td class="B"></td><td class="C"></td></tr> <tr><td class="D"></td><td class="E"></td><td class="F"></td></tr> <tr><td class="G"></td><td class="H"></td><td class="I"></td></tr> </table> <img class="mask" src="border-dashed-radius-non-integer-unfilled-mask.png"> </div> </body> </html>