#main,
#colophon,
#head-container,
#footer-widgets{
    @extend .row;
}
#primary{
    @extend site-content;
    @extend content-area;
    @extend .twelve;
    @extend .columns;
    max-width: 1060px;
}
#secondary{
    @extend .three;
    @extend .columns;
    display: none;
}

#primary .fullwidth{
    @extend .twelve;
    @extend .columns;
}

#primary .leftsidebar{
    @extend .nine;
    @extend .columns;
}

.footer-widget{
    @extend .three;
    @extend .columns;
}

.error404 #primary,
.site-info,
.attachment #primary{
    @extend .twelve;
    @extend .columns;
}
.attachment #primary{
    @extend .image-attachment;
}