Ciao a tutti. Ho creato un sito utilizzando il tema free SimpleCorp di Wordpress. Il sito è www.libreriacipi.it. Riesco a visualizzare il sottomenu su tutti i browser tranne che su Internet Explorer. Qualcuno potrebbe aiutarmi se allego il main-css (solo la parte relativa alla header e navigation) del mio tema?. Grazie a chi saprà darmi una mano.
codice:
/*    HEADER,CONTAINER,LOGO, RESPONSIVE NAVIGATION
/* -------------------------------------------------- */
#page {
    height:auto;
    width:1020px;
    background:#FFF;
    -webkit-box-shadow: 0 10px 80px 0 rgba(0, 0, 0, 0.20);
    -moz-box-shadow: 0 10px 80px 0 rgba(0, 0, 0, 0.20); 
    box-shadow: 0 10px 80px 0 rgba(0, 0, 0, 0.20);
    padding:0px;
    margin:50px 0 100px 0;
}
#header {
    height:150px;
    padding:0px 0 20px 0;
    float:left;
    width:100%;
}
#navigation-wrapper{float:right;}
#content {padding-bottom: 30px; padding-top: 20px; font-size: 14px;}
#logo{
    float: none;
    /*height: 55px;
    width:230px;
    background:url("../images/logo.png") no-repeat;
    text-indent:-9999px;*/
}
#logo-wrapper {
float:left;
width:240px;
height:200px;
}
#logo-wrapper h1 {
   margin-bottom: 0;
}
#tagline {
   margin:0;
   white-space: nowrap;
}
#responsive-social-menu{
    display: none;
    width: 100%;
    padding: 6px;
    font: normal normal 12px/1em 'Open Sans', Arial, Tahoma, sans-serif;
    border: 1px solid #ccc;
    color: #666;
   background:#fff;
    }
#responsive-main-nav-menu{
    display: none;
    width: 100%;
    padding: 6px;
    font: normal normal 12px/1em 'Open Sans', Arial, Tahoma, sans-serif;
    border: 1px solid #ccc;
    color: #666;
}
#page {
    height: auto;
    width: 1020px;
    margin:50px auto 100px;
    padding: 0px;
    }    
/* -------------------------------------------------- */
/*    Columns
/* -------------------------------------------------- */
.container {margin: 0 auto;position: relative;width: 940px;}
.one-half,.one-third,.two-third,.one-fourth,.three-fourth,.one-column {float: left;margin-right: 20px;margin-bottom: 20px;}
.one-half.last,.one-third.last,.two-third.last,.one-fourth.last,.three-fourth.last, .one-fourth.widget-4, .one-fourth.widget-8, .one-fourth.widget-12{  margin-right: 0px }
.one-half { width: 460px }
.one-third { width: 300px }
.two-third { width: 620px }
.one-fourth { width: 220px }
.three-fourth { width: 700px }
.horizontal-line {width:100%;margin:30px 0;float:left;border-top:1px solid #e1e1e1; }

.one-fourth.widget-1, .one-fourth.widget-5 , .one-fourth.widget-9  { clear:both; }

/* -------------------------------------------------- */
/*    MAVIGATION
/* -------------------------------------------------- */
.downarrowclass {
    position: absolute;
    top: 53px;
    right: 5px;
}
.rightarrowclass {
    position: absolute;
    top: 10px;
    right: 10px;
}
#main-navigation select {    display: none }
#main-navigation {    float: right; }
 #main-navigation > ul {    margin: -30px 0 0 0px }
 #main-navigation ul li {
     list-style: none;
     float: left;
     position: relative;
 }
 #main-navigation li a {
     color: #898989;
     font-family: 'Dosis', 'Verdana', sans-serif;
     font-size: 16px;
     font-weight: normal;
/*     padding: 89px 3px 91px;*/
     padding: 89px 3px 91px;
     margin: 0px 0px 10px 0;
     position: relative;
     text-align: center;
     text-transform: uppercase;
     float: left;
     overflow: hidden;
     line-height: 20px;
 }
 #main-navigation ul li a:hover,
 #main-navigation ul li.current-menu-ancestor > a,
 #main-navigation ul li.current-menu-item > a {
     color: #9dcedf;
     background: #f8f8f8;
     border-bottom: 3pt solid #9dcedf;
 }
 #main-navigation ul ul li a {
     display: block;
     float: none;
 }
 #main-navigation ul ul {
     background: url("../images/menu-drop-bg.png") 20% 0% no-repeat;
     padding-top: 8px;
     display: none;
     left: 0;
     margin-top: -18px;
     position: absolute;
     width: 175px;
     z-index: 99;
     border-radius: 2px;
     -moz-border-radius: 2px;
     -webkit-border-radius: 2px;
 }
  #main-navigation ul ul ul {
      background: url("../images/menu-drop-bg-2.png") 0% 50% no-repeat;
      padding-left: 8px;
      display: none;
      left: 0;
      position: absolute;
      width: 175px;
      z-index: 99;
      border-radius: 2px;
      -moz-border-radius: 2px;
      -webkit-border-radius: 2px;
  }
   #main-navigation ul ul ul  ul {
       background: url("../images/menu-drop-bg-2.png") 0% 50% no-repeat;
       padding-left: 8px;
       display: none;
       margin-left: 10px;
       left: 0;
       position: absolute;
       width: 175px;
       z-index: 99;
       border-radius: 2px;
       -moz-border-radius: 2px;
       -webkit-border-radius: 2px;
   }
  #main-navigation ul ul  li,
  #main-navigation ul ul  li a {
      padding: 0px 0 0 0px;
      margin: 0px;
      color: #FFF;
      background: #615951;
      font-family: "Arial", "Verdana";
  }
  #main-navigation ul ul  li { }
  #main-navigation ul ul li {    float: none }
 #main-navigation ul li {
     padding: 0;
     margin: 0 0 0 20px;
 }
 #main-navigation ul ul a {
     border: 0;
     color: #fff;
     display: block;
     font-size: 11px;
     font-weight: 400;
     padding: 5px 10px !important;
     text-align: left;
     margin: 0;
     text-transform: none;
 }
 #main-navigation ul ul a:hover,
 #main-navigation ul ul .hover > a,
 #main-navigation ul ul .current-menu-item > a,
 #main-navigation ul ul .current-menu-item > a:hover {
     background: #9dcedf ;
     color: #fff !important;
     border: 0 !important;
 }
 #main-navigation ul li ul {
     position: absolute;
     left: 0px;
     display: block;
     visibility: hidden;
     margin-left: 0px;
     top: 0;
 }
 .downarrowclass,
 .rightarrowclass {
 width:8px;
 height:8px;
 background:url(../images/plus.png) top left no-repeat;
 display:inline-block;
    position: absolute;
    right: 5px;
    top: 53px
 }
 .rightarrowclass {
 background-image:url(../images/plus-white.png);
 }
 /* ---------------------------------------------------------------------- */