那些是什么？所以我可以逃脱他们..
解决方法
@H_301_6@
In CSS,identifiers (including element@H_403_8@ names,classes,and IDs in selectors)@H_403_8@ can contain only the characters@H_403_8@ [a-zA-Z0-9] and ISO 10646 characters@H_403_8@ U+00A1 and higher,plus the hyphen (-)@H_403_8@ and the underscore (_); they cannot@H_403_8@ start with a digit,or a hyphen@H_403_8@ followed by a digit. Identifiers can@H_403_8@ also contain escaped characters and@H_403_8@ any ISO 10646 character as a numeric@H_403_8@ code (see next item).code (see next item).
