.wzxxxx{ width:1200px; margin:0 auto;}



/* 响应式css */

 /*  1200-1920   */
@media screen and (min-width:1200px) and (max-width:1920px){


}


/*   900-1199   */
@media screen and (min-width:900px) and (max-width:1199px){

}


/*    737-899   */

@media screen and (min-width:737px) and (max-width:899px){


}


/*    480-736    */
@media screen and (min-width:480px) and (max-width:736px){
.wzxxxx{width:100%;}

}


/*    320-479    */
@media screen and (min-width:320px) and (max-width:479px){
.wzxxxx{width:100%;}

}

/*      320     */
@media screen and (max-width:320px){
.wzxxxx{width:100%;}

}