Trailing space wrongly replaced by period

[naton]

When validating the following markup (note the trailing space in the class attribute):

<li class="grid-item offer "><a href="/sv/vi-erbjuder/intranat/">…

...I get an error saying (note the extra period in the css rule):

Error: Syntax error, unrecognized expression: .grid-item.offer. a[href="/sv/vi-erbjuder/intranat/"]

…which leads me to believe there's a missing trim before the spaces gets replaced with periods.

[jessebeach]

Noted.