rspec/rules/S4652/rule.adoc

According to the W3C specifications:

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A string cannot directly contain a newline. To include a newline in a string, use an escape representing the line feed character in ISO-10646 (U+000A), such as "\A" or "\00000a".

{empty}[...]

It is possible to break strings over several lines, for aesthetic or other reasons, but in such a case the newline itself has to be escaped with a backslash (\).

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== Noncompliant Code Example

----
a {
  content: "first
    second";     
} 
----


== Compliant Solution

----
a {
  content: "first\Asecond";     
}  
----


== See

* https://www.w3.org/TR/CSS2/syndata.html#strings[CSS Specification] - Strings