.menu_uls {
    display:flex;
    justify-content: space-between;}
   
   .nav>ul>li>a {
   color: #fff
   ;}
@media screen and (max-width: 1000px) {
    .banner_img {
        height:200px !important
    ;}
}
.noyuan::before {display:none !important;}
.noyuan::before {display:none !important;}
/*123*/