<!DOCTYPE html> <html lang="en-US"> <head> <title>test of border-image-source: linear-gradient with border-image-repeat</title> <style> div { border: 30px solid black; border-image: linear-gradient(to bottom right, red, blue); width: 180px; height: 180px; } div.border40round { border-image-repeat: round; border-image-slice: 40 fill; } div.border45round { border-image-repeat: round; border-image-slice: 45 fill; } div.border75round { border-image-repeat: round; border-image-slice: 75 fill; } </style> </head> <body> <div class="border40round"></div> <div class="border45round"></div> <div class="border75round"></div> </body> </html>