Specify single or double quotes around strings.
a[id="foo"] { content: "x"; }
/** ↑ ↑ ↑ ↑
* These quotes and these quotes */
Quotes within comments are ignored.
/* "This is fine" */
/* 'And this is also fine' */
Single quotes in a charset @-rule are ignored as using single quotes in this context is incorrect according the CSS specification.
@charset "utf-8"
/* fine regardless of configuration */
The fix
option can automatically fix most of the problems reported by this rule.
string
: "single"|"double"
"single"
Strings must always be wrapped with single quotes.
The following patterns are considered violations:
a { content: "x"; }
a[id="foo"] {}
The following patterns are not considered violations:
a { content: 'x'; }
a[id='foo'] {}
a { content: "x'y'z"; }
"double"
Strings must always be wrapped with double quotes.
The following patterns are considered violations:
a { content: 'x'; }
a[id='foo'] {}
The following patterns are not considered violations:
a { content: "x"; }
a[id="foo"] {}
a { content: 'x"y"z'; }
avoidEscape
: true|false
, defaults to true
Allows strings to use single-quotes or double-quotes so long as the string contains a quote that would have to be escaped otherwise.
For example, with "single", { "avoidEscape" : false }
.
The following patterns are considered violations:
a { content: "x'y'z"; }
a[id="foo'bar'baz"] {}
The following patterns are not considered violations:
a { content: 'x'; }
a[id='foo'] {}