@media screen and (max-width: 1190px) {
  /*头部和底部的公共部分*/
  .topmenu .menu,
  .header,
  .footer {
    width: 960px;
  }
  .header .logo img {
    width: 261px;
    height: 46.28px;
  }
  .header .logo .mainlogo {
    left: 150px;
    top: 0px;
  }
  .header .logo .mainlogo img {
    width: 140px;
    height: auto;
  }
  .header .search_box {
    width: 386px;
    margin: 29px auto auto 36px;
  }
  .header .search_box form {
    width: 386px;
  }
  .header .search_box .partno {
    width: 171px;
  }
  .header .search_box .qty {
    width: 69px;
  }
  .header .search_box .server li {
    font-size: 12px;
  }
  .container {
    width: 960px;
  }
}