반응형 메뉴를 만들고 있는대 모바일에선 되는대 윈도우에서 안먹습니다.

/* clearfix */
.clearfix:before, .clearfix:after{
    content:"";, display: table;
}
.clearfix:after{
    clear:both;
}
.clearfix{
    *zoom:1;
}


nav{
    height: 40px;
    width: 100%;
    background: #455868;
    font-size: 11pt;
    font-family: 'PT Sans', Arial, Sans-serif;
    font-weight: bold;
    position: relative;
    border-bottom: 2px solid #283744;
}
nav ul .clearfix{
    padding: 0;
    position: relative;
    margin: 0 auto;
    width: 920px;
    height: 40px;
}
nav li{
    display: inline;
    float: left;
}
nav ul.clearfix2{
    width: auto;
    display: inline
    position:relative;
    float: right;
}

nav a{
    color: #fff;
    display: inline-block;
    width: 100px;
    text-align: center;
    text-decoration: none;
    line-height: 40px;
    text-shadow: 1px 1px 0px #283744;
}
nav li a{
    border-right: 1px solid #576979;
    box-sizing: border-box;
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
}
nav li:last-child a{
    border-right: 0;
    }
nav a:hover, nav a:active{
    background-color: #8c99a4;
}
nav a#pull{

    display: none;
}

/*Styles for screen 600px and lower*/
@media only screen and (max-width : 1024px) {
    nav {
        border-bottom: 0;
        height: auto;
    }
    nav ul {
        display: none;
        height: auto;
    }
    nav a {
          text-align: left;
          width: 100%;
          text-indent: 25px;
      }
    nav a#pull {
        display: block;
        background-color: #283744;
        width: 100%;
        position: relative;
    }
    nav a#pull:after {
        content:"";
        background: url('nav-icon.png') no-repeat;
        width: 30px;
        height: 30px;
        display: inline-block;
        position: absolute;
        right: 15px;
        top: 10px;
    }
    nav li {
        display: block;
        float: none;
        width: 100%;
    }
    nav li a {
        border-bottom: 1px solid #576979;
    }
}