@mEdia all and (min-width:500px){@docuMent url(http://www.w3.org/),url-prefix(http://www.w3.org/Style/),domain(mozilla.org),regexp("https:.*"){@suPpoRts ((perspective:10px) or (-moz-perspective:10px) or (-webkit-perspective:10px) or (-ms-perspective:10px) or (-o-perspective:10px)){@keyFRames slidein{from{margin-left:100%;width:300%}75%{font-size:300%;margin-left:25%;width:150%}to{margin-left:0%;width:100%}}@pagE :last{margin:3in}}}}