求助

* div { width: auto; }
.erjiquanping, div { width: 100%; }
.layout { width: 950px; }
.col-main { width: 100%; }
.skin-box-bd, .tb-module { overflow: visible; }
.tshop-psm-shop-ww-hover { width: auto; }
.slide-box { margin: 0 auto; }
.J_TLayout .col-sub { margin-left: -950px; width: 190px; }
.grid-s5m0 .tb-sho { margin-left: -950px; }
.layout, .grid-m0 .main-wrap, .grid-m0 .tshop-pbsm-shop-self-defined
.skin-box-bd { width: 950px; }
怎么局部定义这CSS啊，这是一个淘宝二级页面全屏的CSS，但是这个CSS加进去之后是所有页面都全屏，怎么实现只让某个页面全屏啊