@namespace url(http://www.w3.org/1999/xhtml);

@-moz-document domain("lifehacker.com") {

.thread .replies {
    background-color: #EBEEDD !important; }

}

@-moz-document domain("io9.com") {

.thread .replies {
    background-color: #F2F2F2 !important; }

}

@-moz-document domain("gizmodo.com") {

.thread .replies {
    background-color: #F2F4F8 !important; }

}