@media only screen and (max-width: 1500px) {

    header{
        width: 100%;
    }

    .ul1{
        margin-right: 0;
    }
    .userimg {
        display: none;
    }

    .lihead{
        font-size: 17px;
    }

    .puser:first-child{
        margin: 16px;
    }

    .puser{
        font-size: 16px;
        margin-right: 20px;
        color: gray;
    }

    .accsign{
        margin-right: 10px;
    }
  }



  @media only screen and (max-width: 1400px) {
   .lihead{
    margin-left: 15px;
   }

   .header2{
    margin-left: 50px;
   }

   header{
    justify-content: left;
   }
  }