Some CSS functions not highlighted correctly

[hail2u]

• invert()
• running()
• element()
• fit-content()
• inset()
• circle()
• ellipse()
• fade()

There are many conflicts around syntaxes.
#36 and #39 are merged to this issue.

[ObserverOfTime]

I noticed that rotate() was not highlighted properly and was about to submit an issue when I saw this one.
I have a quick bodge that should also work for the other functions:

diff --git a/after/syntax/css/logical-1.vim b/after/syntax/css/logical-1.vim
index d944ff8..392fbfd 100644
--- a/after/syntax/css/logical-1.vim
+++ b/after/syntax/css/logical-1.vim
@@ -2,4 +2,5 @@ syn match cssFontProp contained "\<\(\(min\|max\)-\)\=\(block\|inline\)-size\>"
 syn match cssFontProp contained "\<\(margin\|inset\|padding\)\(-\(block\|inline\)\(-\(start\|end\)\)\=\)\=\>"
 syn match cssFontProp contained "\<border-\(block\|inline\)\(\(-\(start\|end\)\)\=\(-\(width\|style\|color\)\)\=\)\=\>"
 syn match cssFontProp contained "\<border-\(start\|end\)-\(start\|end\)-radius\>"
-syn keyword cssFontAttr contained logical physical rotate
+syn keyword cssFontAttr contained logical physical
+syn match cssFontAttr "\<rotate\%(\s*(\)\@!"

I could go through the other functions and submit a PR, unless you'd prefer to come up with something better.