body {
    background-color: #CCCCCC;
}

article {
    width: 1000px;
    margin-left: auto;
    margin-right: auto;
    font-family: Arial, Helvetica, sans-serif;
    overflow: hidden;
    box-shadow: 5px 5px 10px gray, -5px -5px 10px gray;
    background-color: white;
}

a:link {
    text-decoration: none;
}

a:visited {
    text-decoration: none;
}

a:hover {   /* note: a:hover must be placed after a:link and a:visited, or it would work wrong in old Internet Explorer !!! */
    text-decoration: underline;
}

header {
    color: #FFFFFF;
    padding: 10px 10px 30px 200px;
    background: #0A1497 url(../images/bnu_log.jpg) no-repeat 40px 10px;
}

h1 {
    font-size: 150%;
}

h2 {
    font-size: 120%;
}

h3 {
    color: #990000;
    text-shadow: 1.5px 2.5px 3px #9B9B9B;
}

nav ul {
    color: #FFFFFF;
    background-color: #0066FF;
    margin: 0px;
    padding-top: 5px;
    padding-bottom: 5px;
}

nav ul li {
    display: inline;
    padding-left: 10px;
    padding-right: 40px;
    list-style-type: none;
}

nav ul li a {
    color: #FFFFFF;
    transition: opacity 1s;
}


nav ul li a:visited {
    text-decoration: none;
}

nav ul li a:hover {
    text-decoration: underline;
    opacity: 0.5    
}

aside {
    background-color: #D9DBE0;
    width: 165px;
    font-size: 80%;
    font-weight: bold;
    color: #000066;
    float: left;
    padding-bottom: 3000px;
    margin-bottom: -3000px;
}

aside h3 {
    margin: 0px;
    padding: 5px;
    padding-top: 20px;
    font-size: 100%;
    color: #000066;
}

aside ul {
    margin: 0px;
    list-style-type: none;
    padding-left: 20px;
    padding-right: 5px;
    padding-bottom: 10px;
}

aside ul li {
    background: url(../images/smbut.gif) no-repeat 0px -2px;
    padding-left: 20px;
    margin-bottom: 10px;
}

aside ul li a {
    color: #000066;
}

footer {
    clear: both;
    font-size: 80%;
    text-align: center;
    padding-top: 10px;
    padding-bottom: 10px;
    background-color: #D9DBE0;
}
