@media only screen and (max-width:599px){.cat-selector{-moz-columns:2;column-count:2}}@media only screen and (min-width:600px){.cat-selector{-moz-columns:3;column-count:3}}@media only screen and (min-width:900px){.cat-selector{-moz-columns:4;column-count:4}}@media only screen and (min-width:1200px){.cat-selector{-moz-columns:5;column-count:5}}@media only screen and (min-width:1440px){.cat-selector{-moz-columns:6;column-count:6}}