#mainVisual {
margin: 0 auto;
width: 800px;
}
 
#autoVisual {
position: relative;
width: 800px;
height: 300px;
overflow: hidden;
}
 
#autoNav {
margin: 5px 0 0 -20px;
height: 20px;
list-style: none;
overflow: hidden;
zoom: 1;
}
 
#autoNav li {
float: left;
_display: inline;
margin-left: 20px;
//width: px;
height: 100%;
}