.nav{ float:left; width:550px; height:38px; background:url(../images/in_45.jpg) repeat-x; margin-left:60px; border-radius:20px; margin-top:38px; padding:0 30px;}
.yyui_menu1 li { float:left; position:relative;} /*这一级是导航*/
.yyui_menu1 li img { vertical-align:middle; margin-left:10px;}
.yyui_menu1 li a {display:block;line-height:38px; text-decoration:none; padding:0 16px; color:#fff;}
.yyui_menu1 li a:hover { background:#fa0; color:#fff;}
.yyui_menu1 li a.more:after{content:" »";}
 
.yyui_menu1 li ul { position:absolute; display:none; z-index:9999;-moz-opacity:0.9; filter:alpha(opacity=90); opacity:0.89;} /*这是第二级菜单*/
.yyui_menu1 li ul a{width:90px;text-decoration:none;background:#fa0; color:#fff; display:block; padding:0 20px;line-height:30px; border:0; margin:0;}
.yyui_menu1 li ul a:hover { background:#01abe6; color:#fff;}
.yyui_menu1 li ul ul { width:190px;}
.yyui_menu1 li ul ul li a { width:130px;}
 
.yyui_menu1 li ul ul{ top:0;left:130px;} /*从第三级菜单开始,所有的子级菜单都相对偏移*/
.yyui_menu1 li ul li.aaa a:hover { background:#01abe6; color:#fff;}