Follow changes in CR-css-grid-1-20171214

See also: http://www.w3.org/TR/2017/CR-css-grid-1-20171214/

Author: hail2u

after/syntax/css/css-align-3.vim

@@ -1,5 +1,5 @@
 syn match cssFontProp contained "\<\(justify\|align\|place\)-\(self\|content\|items\)\>"
-syn match cssFontProp contained "\<\(grid-\)\=\(\(row\|column\)-\)\=gap\>"
+syn match cssFontProp contained "\<\(\(row\|column\)-\)\=gap\>"
 syn keyword cssFontAttr contained safe unsafe legacy
 syn match cssFontAttr contained "\<\(self\|flex\)-\(start\|end\)\>"
 syn match cssFontAttr contained "\<space-\(between\|around\|evenly\)\>"

test/test.css

@@ -11,9 +11,6 @@
   row-gap: legacy;
   column-gap: auto;
   gap: auto;
-  grid-column-gap: auto;
-  grid-row-gap: auto;
-  grid-gap: auto;
 }
 
 .animations {