body {background-color:white;}

a.tab {
	border-collapse:collapse;
    border-style:solid solid none solid;
    border-color:black;
    border-width:1px 1px 0px 1px; 
    background-color:silver; 
    padding:2px 0.5em 2px 0.5em; 
    margin-top:4px;
    font-family:arial; 
    color:blue;
    text-decoration:none;
}

a.tab:hover { 
	border-color:black; 
	background-color:Aqua;
}

.panel { 
	border:solid 1px black; 
    background-color:white; 
    padding:10px; 
    overflow:auto;
}