.logo-wrap{position: absolute;top: 0px;left: 50%;margin-left: -700px;}
.logo-wrap .ztlogo{display: inline-block;padding: 10px 0px;max-width: 80%;}
@media (max-width: 1400px) {
  .logo-wrap{width:100%!important;left:10px;margin-left:0px;}
}
@media (max-width: 686px) {
.logo-wrap .ztlogo img{height: 30px;}
}
@media (max-width: 400px) {
.logo-wrap .ztlogo img{height: 20px;}
}