#nav{ /*container that holds a row of aero buttons*/
overflow: hidden; /*See: http://www.quirksmode.org/css/clearing.html */
width: auto;
margin: 50px 0 0 0;
right: 40px;
position: absolute;
}

* html #nav{ /*IE6 and below hack. Set explicit strip width*/
width: 100%;
}

#nav a.aero{ /*aero button CSS*/
background: transparent url('../img/aeroleft.gif') no-repeat top left;
display: block;
float: right;
font: bold 13px Verdana, Trebuchet MS; /* Change 13px as desired */
line-height: 23px; /* This value + 8px should equal height of button background (default is 31px) */
height: 31px; /* Height of button background height */
padding-left: 10px; /* Width of left menu image */
text-decoration: none;
margin-right: 5px; /*spacing between buttons*/
filter:progid:DXImageTransform.Microsoft.Alpha(opacity=70); /*this and next two rules control opacity of buttons before hover*/
opacity: 0.7;
-moz-opacity: 0.7;
}

#nav a.aero:link, #nav a.aero:visited, #nav a:active{
color: white; /*button text color*/
}

#nav a.aero span{
background: transparent url('../img/aeroright.gif') no-repeat top right;
display: block;
padding: 4px 10px 6px 0; /*Set 10px here to match value of 'padding-left' value above*/
}

#nav a.aero:hover, #nav a.current{ /* Hover state CSS */
filter:progid:DXImageTransform.Microsoft.Alpha(opacity=100); /*this and next two rules control opacity of buttons during hover*/
opacity: 1;
-moz-opacity: 0.99;
}

#nav a.aero:hover span{ /* Hover state CSS (for text) */
color: #fff;
}