* {
  margin: 0;
  padding: 0;
  border: 0;
  list-style: none;
  box-sizing: content-box;
  -moz-box-sizing: content-box; /* Firefox */
  -webkit-box-sizing: content-box; /* Safari */ /*line-height:normal*/
}
.hearder_nav a {
  color: #fff !important;
}
.hearder_box_bj {
  box-shadow: 0 0 0 0 #fff;
  -webkit-box-shadow: 0 0 0 0 #fff;
}