Problemas con menús

[Alarde]

CSS

Código:

* {
margin: 0;
padding: 0;
}

/* render html5 elements as block */
header, footer, section, aside, nav, article {
display: block;
}

body {
line-height: 1;
background: #f1f1f1 url("images/bg.gif") repeat;
font-family: Verdana, Arial, Helvetica, sans-serif;
color: #666;
font-size: 14px;
line-height: 18px;
}
	
/* layout */

#wrapper {
width: 940px;
margin: 0 auto;
margin-top: 3px;
margin-bottom: 3px;
-webkit-box-shadow: 3px 3px 7px #777;
-moz-box-shadow: 3px 3px 7px #777;
}

#div_menu {
width: 940px;
margin: 0 auto;
margin-top: 5px;
margin-bottom: 5px;
}

nav {
width: 940px;
height: 50px;
margin: 0 auto;
background: #110E0F;
}

header {
width: 940px;
height: 170px;
margin: 0 auto;
background: #fff url("images/headerimg.jpg") no-repeat left top;
}

#main_ini{
width: 940px;
margin: 0 auto;
background: #FFF;
overflow: hidden;
}
#main_mem {
width: 940px;
margin: 0 auto;
background: #FFF;
overflow: hidden;
}
#main_conso {
width: 940px;
margin: 0 auto;
background: #FFF;
overflow: hidden;
}
#main_not {
width: 940px;
margin: 0 auto;
background: #FFF;
overflow: hidden;
}
#main_res {
width: 940px;
margin: 0 auto;
background: #FFF;
overflow: hidden;
}
#main_contact {
width: 940px;
margin: 0 auto;
background: #FFF;
overflow: hidden;
}

#datos_interes {
width: 940px;
margin: 0 auto;
background: #FFF;
overflow: hidden;
}

#content {
float: right;
width: 940px;
}

#cont_tab{
border:'';
width:500px;
}

#tab_footer{
border:'';
width:940px;
margin-right: 700px;
}

footer {
width: 940px;
margin: 0 auto;
clear: both;
}

/* basics */

h1,h2,h3,h4,h5 {
font-weight: bold;
clear: both;
color: #333;
}


h6{
font-weight: bold;
font-size:16px;
color: #444;
}

a:link, a:visited {
color:#6DBB0D;
}

a:hover, a:active {
color: #333;
}

p {
margin-bottom: 18px;
}

li {
padding-left: 5px;
}

/* nav */

nav .menu {
font-size: 16px;
font-weight: bold;
}

nav .menu ul {
margin: 0;
padding: 17px 0 0 20px;
list-style: none;
line-height: normal;
}

nav .menu li {
display: block;
float: left;
}

nav .menu a {
display: block;
float: left;
margin-right: 5px;
margin-left: 25px;
padding: 0px 15px;
text-decoration: none;
color: #FFF;
}

nav .menu a:hover {
color: #639cb9;
}

/** HEADER */

header h1, header h2 {
margin: 0;
padding: 0 0 0 30px;
line-height: normal;
}

header h1 { 	
font-size: 40px;
float: left;
padding-top: 20px; 
}

header h1 a:link, header h1 a:visited {
text-decoration: none;
color: #FFF;
}

header h1 a:hover { 
text-decoration: underline; 
}

header h2 {
padding: 20px 0 0 30px;
font-style: italic;
font-size: 14px;
color: #FFFFFF;
}

/** ARTICLES **/

article {
padding: 0 30px 0 30px;
}

article img {
border: none;
-webkit-box-shadow: 3px 3px 7px #777;
-moz-box-shadow: 3px 3px 7px #777;
}

article h2 {
margin-top: 20px;
}

#content p, ul, ol, hr {
margin-bottom: 24px;
}

#content ul ul, ol ol, ul ol, ol ul {
margin-bottom: 0;
}

#content h1, h2, h3, h5, h6 {
color: #333;
margin: 0 0 20px 0;
line-height: 1.5em;
}

.alignleft, img.alignleft {
display: inline;
float: left;
margin-right: 24px;
margin-top: 4px;
}

.alignright, img.alignright {
display: inline;
float: right;
margin-left: 24px;
margin-top: 4px;
}

.aligncenter, img.aligncenter {
clear: both;
display: block;
margin-left: auto;
margin-right: auto;
}

img.alignleft, img.alignright, img.aligncenter {
margin-bottom: 12px;
}

/* footer widget blocks */

aside h3 {
font-size: 18px;
}

aside ul {
list-style: none;
margin-bottom: 20px;
margin-top: -15px;
}

aside li a {
display: block;
text-decoration: none;
}

aside li a:hover {
text-decoration: underline;
}

#footer-area {
background: #000;
color: #FFF;
font-size: 85%;
padding: 10px 0;
width: 940px;
height: 40px;
overflow: hidden;
}

.footer-segment {
float: left;
margin-right: 20px;
margin-left: 20px;
width: 190px;
}

footer aside h4 {
color: #FFF;
font-size: 16px;
line-height: 1.5em;
}

footer a:link, footer a:visited {
color: #FFF;
}

footer p {
margin-top: -15px;
}

/** ACCORDION */
.accordbk {
background: #fff;
/*Color degradado de fondo*/
background:-webkit-gradient(linear, 50% 0%, 51% 80%, from(#286a8d), to(#FFFFFF));
/*url(images/accordinfo.gif) bottom right no-repeat;*/
}

.horizontalaccordion>ul {
margin: 0;
padding: 0;
list-style:none;
height: 432px;
}

.horizontalaccordion>ul>li {
display:block;
overflow: hidden;
float:left;
margin: 0;
padding: 0;
list-style:none;
width:40px;
height: 450px;
background:#f0f0f0;
transition: width 0.3s ease-in-out;
-moz-transition: width 0.3s ease-in-out;
-webkit-transition: width 0.3s ease-in-out;
-o-transition: width 0.3s ease-in-out;
}

.horizontalaccordion>ul>li>h3 {
display:block;
float:left;
margin: 0;
padding:10px;
height:19px;
width:450px;
border-left:#f0f0f0 1px solid;
font-family: Arial, Helvetica, sans-serif;
text-decoration:none;
text-transform:uppercase;
color: #000;
background:#cccccc;
white-space:nowrap;
-moz-transform: rotate(90.0deg) translate(-40px,0px);
-moz-transform-origin: 0 100%;
-o-transform: rotate(90.0deg) translate(-40px,0px);
-o-transform-origin: 0 100%;
-webkit-transform: rotate(90.0deg) translate(-40px,0px);
-webkit-transform-origin: 0 100%;
transform: rotate(90.0deg) translate(-40px,0px);
transform-origin: 0 100%;
filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=1.0)
progid:DXImageTransform.Microsoft.gradient(startColorstr=#ff999999, endColorstr=#ffcccccc);
-ms-filter: "progid:DXImageTransform.Microsoft.BasicImage(rotation=1.0)"
"progid:DXImageTransform.Microsoft.gradient(startColorstr=#ff999999, endColorstr=#ffcccccc)";
background: -moz-linear-gradient( top, #999999, #cccccc);
background: -webkit-gradient(linear, left top, left bottom, from(#999999), to(#cccccc));
}

/*Posición del texto dentro de los menús*/
.horizontalaccordion>ul>li>div {
display:none;
float:left;
overflow: auto;
position:relative;
top:-30px;
left:50px;
*top:0px;
*left:0px;
margin:0;
width:640px;
height:450px;
}

.horizontalaccordion>ul>li>div img {
float: left;
margin-right: 8px;
}

.horizontalaccordion>ul>li:hover {
overflow: hidden;
width: 780px;
}

.horizontalaccordion:hover>ul>li:hover>div {
display:block;
}

.horizontalaccordion:hover>ul>li:hover>h3 {
color:#fff;
background:#000000;
background: -moz-linear-gradient( top, #454545, #000000);
background: -webkit-gradient(linear, left top, left bottom, from(#454545), to(#000000));
filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=1.0);
progid:DXImageTransform.Microsoft.gradient(startColorstr=#ff454545, endColorstr=#ff000000);
-ms-filter: "progid:DXImageTransform.Microsoft.BasicImage(rotation=1.0)"
"progid:DXImageTransform.Microsoft.gradient(startColorstr=#ff454545, endColorstr=#ff000000)";
}

.horizontalaccordion>ul>li>h3:hover {
cursor:pointer;
}

.horizontalaccordion h4 {
font-size: 16px;
}

He sub-rallado dónde hace la transición, es decir, cuando me pongo encima del menú (que no le hago click), el menú se despliega. Lo que busco es que por ejemplo "Inicio" esté siempre desplegado.