 <style>
#header {
    background-color:black;
    color:white;
    text-align:center;
    padding:5px;
}
#aside {
    line-height:30px;
    background-color:#eeeeee;
    height:300px;
    width:200px;
    float:left;
    padding:5px;
}
#nav {
	overflow: auto
    line-height:30px;
    background-color:#eeeeee;
    width:20%;
	display: block;
    float:left;
    /* padding:5px; */
}
#section {
    width:78%;
    float:right;
    /* padding:10px; */
}
#footer {
    background-color:green;
    color:white;
    clear:both;
    text-align:center;
    padding:5px;
}
table, th, td {
    border: 2px solid black;
    border-collapse: collapse;
}
th, td {
    padding: 15px;
}
ul.a {
    list-style-type: circle;
}

ul.b {
    list-style-type: square;
}

ol.c {
    list-style-type: upper-roman;
}

ol.d {
    list-style-type: lower-alpha;
}
ul ls {
padding-right: 15px;
}
</style> 
