Updating « Seigaiha » pattern (#156)

Modify some stop-color percentages to correct gaps in the pattern.

index.html

@@ -231,11 +231,11 @@ <h1>CSS3 Patterns Gallery</h1>
 
 	<li style="background-color:silver;
 background-image:
-radial-gradient(circle at 100% 150%, silver 24%, white 25%, white 28%, silver 29%, silver 36%, white 36%, white 40%, transparent 40%, transparent),
-radial-gradient(circle at 0    150%, silver 24%, white 25%, white 28%, silver 29%, silver 36%, white 36%, white 40%, transparent 40%, transparent),
-radial-gradient(circle at 50%  100%, white 10%, silver 11%, silver 23%, white 24%, white 30%, silver 31%, silver 43%, white 44%, white 50%, silver 51%, silver 63%, white 64%, white 71%, transparent 71%, transparent),
-radial-gradient(circle at 100% 50%, white 5%, silver 6%, silver 15%, white 16%, white 20%, silver 21%, silver 30%, white 31%, white 35%, silver 36%, silver 45%, white 46%, white 49%, transparent 50%, transparent),
-radial-gradient(circle at 0    50%, white 5%, silver 6%, silver 15%, white 16%, white 20%, silver 21%, silver 30%, white 31%, white 35%, silver 36%, silver 45%, white 46%, white 49%, transparent 50%, transparent);
+radial-gradient(circle at 100% 150%, silver 24%, white 24%, white 28%, silver 28%, silver 36%, white 36%, white 40%, transparent 40%, transparent),
+radial-gradient(circle at 0    150%, silver 24%, white 24%, white 28%, silver 28%, silver 36%, white 36%, white 40%, transparent 40%, transparent),
+radial-gradient(circle at 50%  100%, white 10%, silver 10%, silver 23%, white 23%, white 30%, silver 30%, silver 43%, white 43%, white 50%, silver 50%, silver 63%, white 63%, white 71%, transparent 71%, transparent),
+radial-gradient(circle at 100% 50%, white 5%, silver 5%, silver 15%, white 15%, white 20%, silver 20%, silver 29%, white 29%, white 34%, silver 34%, silver 44%, white 44%, white 49%, transparent 49%, transparent),
+radial-gradient(circle at 0    50%, white 5%, silver 5%, silver 15%, white 15%, white 20%, silver 20%, silver 29%, white 29%, white 34%, silver 34%, silver 44%, white 44%, white 49%, transparent 49%, transparent);
 background-size: 100px 50px;" title="Seigaiha"></li>
 
 	<li style="background-color:#556;