This vector shows what characters allow you to break out of CSS strings.
<div style="font-family:'x$[chr];color:red;';">test</div><div style="font-family:'x
;color:red;';">test</div><div style="font-family:'x0x0C;color:red;';">test</div><div style="font-family:'x0x0D;color:red;';">test</div><div style="font-family:'x';color:red;';">test</div>