reftests: Fix css-currentcolor-alpha.ui test

The test did not draw anything, which fails now.

diff --git a/testsuite/reftests/css-currentcolor-alpha.css b/testsuite/reftests/css-currentcolor-alpha.css
index 363dccc5a2c9059e6085b2e3ed5d5f447ad6ee57..2479f8eb374e4584862826daefca40caaa69034a 100644 (file)
--- a/testsuite/reftests/css-currentcolor-alpha.css
+++ b/testsuite/reftests/css-currentcolor-alpha.css
@@ -2,6 +2,8 @@
 
 window {
   color: alpha(currentColor, 0.0);
+  /* So we draw something */
+  border: 1px solid rebeccapurple;
 }
 
 #reference {