update elements and fix some bugs

lib/src/prism/tests/languages/sass/property-line_feature.test

Index: lib/src/prism/tests/languages/sass/property-line_feature.test
diff --git a/lib/src/prism/tests/languages/sass/property-line_feature.test b/lib/src/prism/tests/languages/sass/property-line_feature.test
new file mode 100644
index 0000000000000000000000000000000000000000..499f223a974983efdc1c168604c0ff7a8c8eeebf
--- /dev/null
+++ b/lib/src/prism/tests/languages/sass/property-line_feature.test
@@ -0,0 +1,47 @@
+foo: bar
+	color: $color !important
+-moz-border-radius: 10px
+transition-timing-function: ease-in-out
+
+	:color #{$color}
+:font-size 0.5em + 3em
+
+----------------------------------------------------
+
+[
+	["property-line", [
+		["property", "foo"],
+		["punctuation", ":"],
+		" bar"
+	]],
+	["property-line", [
+		["property", "color"],
+		["punctuation", ":"],
+		["variable", "$color"],
+		["important", "!important"]
+	]],
+	["property-line", [
+		["property", "-moz-border-radius"],
+		["punctuation", ":"],
+		" 10px"
+	]],
+	["property-line", [
+		["property", "transition-timing-function"],
+		["punctuation", ":"],
+		" ease-in-out"
+	]],
+	["property-line", [
+		["punctuation", ":"],
+		["property", "color"],
+		["variable", "#{$color}"]
+	]],
+	["property-line", [
+		["punctuation", ":"],
+		["property", "font-size"],
+		" 0.5em ", ["operator", "+"], " 3em"
+	]]
+]
+
+----------------------------------------------------
+
+Checks for properties.