Fix the css-match-* reftests.
+@import url("reset-to-defaults.css");
+
.window {
engine: none;
background-image: none;
+@import url("reset-to-defaults.css");
+
#window {
engine: none;
background-image: none;
+@import url("reset-to-defaults.css");
+
GtkContainer {
engine: none;
background-image: none;
+@import url("reset-to-defaults.css");
+
GtkWindow {
engine: none;
background-image: none;