/*** ESSENTIAL STYLES ***/
.sf-menu, .sf-menu * {
    margin: 0.002em;
    padding: 1px;
    list-style: none;
 
    color: #777 !important;
    font-size: 13px;
  
    font-weight: normal !important;
    background-color: transparent;
}

    .sf-menu li {
        position: relative;
         
    }

    .sf-menu ul {
        position: absolute;
        display: none;
        top: 100%;
        left: 0;
        z-index: 99;
    }

    .sf-menu > li {
        float: left;
    }

    .sf-menu li:hover > ul,
    .sf-menu li.sfHover > ul {
        display: block;
    }

    .sf-menu a {
        display: block;
        position: relative;
     
    }

    .sf-menu ul ul {
        top: 0;
        left: 100%;
    }


/*** DEMO SKIN ***/
.sf-menu {
    float: left;
    margin-bottom: 0.5em;
}

    .sf-menu ul {
        box-shadow: 2px 2px 6px;
        min-width: 12em; /* allow long menu items to determine submenu width */
        *width: 12em; /* no auto sub width for IE7, see white-space comment below */
    }

    .sf-menu a {
        padding: 2px;
        text-decoration: none;
        zoom: 1; /* IE7 */
    }

    .sf-menu a {
        color: black;
    }

    .sf-menu li {
        background-color: #ffffff; /* drop down menu color */
        white-space: nowrap; /* no need for Supersubs plugin */
        *white-space: normal; /* ...unless you support IE7 (let it wrap) */
        -webkit-transition: background .2s;
        transition: background .1s;
    }

    .sf-menu ul li {
        /* background: rgba(0,0,0,.2);     Menu Back color */;
    }

    .sf-menu ul ul li {
        /*background: #f1f7be;  Menu Text color */
    }

    .sf-menu li:hover,
    .sf-menu li.sfHover {
        background-color:#EEE;
        -webkit-transition: none;
        transition: none;
    }

/*** arrows (for all except IE7) **/
.sf-arrows .sf-with-ul {
    padding-right: 2em;
    *padding-right: 1em; /* no CSS arrows for IE7 (lack pseudo-elements) */
}
    /* styling for both css and generated arrows */
    .sf-arrows .sf-with-ul:after {
        content: '';
        position: absolute;
        top: 50%;
        right: 1em;
        margin-top: -3px;
        height: 0;
        width: 0;
        /* order of following 3 rules important for fallbacks to work */
    }

.sf-arrows > li > .sf-with-ul:focus:after,
.sf-arrows > li:hover > .sf-with-ul:after,
.sf-arrows > .sfHover > .sf-with-ul:after {
    border-top-color: white; /* IE8 fallback colour */
}
/* styling for right-facing arrows */
.sf-arrows ul .sf-with-ul:after {
    margin-top: -5px;
    margin-right: -3px;
    border-color: transparent;
}

.sf-arrows ul li > .sf-with-ul:focus:after,
.sf-arrows ul li:hover > .sf-with-ul:after,
.sf-arrows ul .sfHover > .sf-with-ul:after {
    border-left-color: white;
}


/* my code */
.header-nav
{
    font-size:11px;
}
#a_side_menu:before {
    display: inline-block;
    width: 50px;
}

#a_side_menu:after {
    content: "\25BC";
    display: inline-block;
    width: 50px;
}

.nav-menu ul {
    display: none;
    position: fixed;
    background-color: #FFF;
    list-style: none;
    box-shadow: rgba(0,0,0,0.3) 2px 2px;
    border: 1px solid #EEE;
}

    .nav-menu ul li a {
        display: block;
        font-size: 11px;
        padding: 3px;
    }

    .nav-menu ul.visible {
        display: block;
    }