code appears when I do a live version, it don't appears in development mode

@charset "UTF-8";@page {size:a3;}body{min-width:992px!important;} @charset "UTF-8";img{page-break-inside:avoid;}h2,p{orphans:3;widows:3;}h2{page-break-after:avoid;}@page {size:a3;}.container,body{min-width:992px!important;}.navbar{display:none;}