body {
    font-family: Verdana, Geneva, Arial, Helvetica, sans-serif;
    min-width: 40em;
}

#header {
    border-bottom: #AAAAAA solid medium;
    border-top: #AAAAAA solid medium;
    margin-bottom: 1em
}

#footer {
    border-top: #AAAAAA solid medium;
    background-color: #FFFFFF
}

#footer p {
    float: left;
    margin-top: 1em;
    width: 33%;
    text-align: center;
}

h1, h2 {
    text-align: center;
    margin: .5em;
}

h1, h2, h3 {
	font-family: Arial, Helvetica, sans-serif;
    color: #0000FF;
}

p.images {
    margin: 1em;
    border: none
}

img.dog-images {
    margin: 0.5em;
    padding: 10px;
    border:1px solid navy
}

p.images a {
    margin: 1em;
    border: none
}
            
.image-gallery {
    padding: 1em;
    float: left;
    border: black solid thin
}

.clear {clear(both)}  
p.footnote {
    margin-left: 1em
}

span.initials {
    font-size: 75%
    
}

ul.excercise li {
    text-decoration: none;
    margin-left: 1em;
    font-family: monospace;
    list-style: none
}

ul.no-decoration li {
    text-decoration: none;
    margin-left: 1em;
    list-style: none
}

li#qna {
    list-style: upper-alpha;
    margin-top: 1em;
}

li#qna-cont {
    list-style: none;
    margin-top: 1em;
}

div.picture p {
    text-align: center;
}

div.picture img {
    margin: auto;
    display: block;
}

#portrait {
    float: right;
    margin: 1em 0 1em 1em;
    margin:percentage;
}

.clear {
    clear: both
}

div#navigation {
    margin: 1em 0;
}

#navigation ul {
    margin: 1em 0;
    background-color: #FFFFFF;
    padding: 0.5em 0;
    border: #AAAAAA outset medium
}

#navigation li {
    margin: 0 .25em;
    text-align: left;
    display: inline;
    list-style: none;
	
}

#navigation li a {
    color: #0000FF

}

#navigation li a:hover {
    color: #000000;
}
div#navigation-top {
    margin: 1em 0 0 0;
}

#navigation-top ul {
    margin: 1em 0 0 0;
    background-color: #FFFFFF;
    padding: 0.5em 0 ;
    
    border:  #AAAAAA medium;
    border-style: outset outset double outset  
}

#navigation-top li {
    margin: 0 .25em;
    text-align: left;
    display: inline;
    list-style: none;
	
}

#navigation-top li a {
    color: #0000FF

}

#navigation-top li a:hover {
    color: #000000;
}
div#navigation-sub {
    margin: 0 0 1em 0;
}

#navigation-sub ul {
    margin: 0 0 1em 0;
    background-color: #FFFFFF;
    padding: 0.5em 0;
    border:  #AAAAAA medium;
    border-style: hidden outset outset outset 
}

#navigation-sub li {
    margin: 0 .25em;
    text-align: left;
    display: inline;
    list-style: none;
	
}

#navigation-sub li a {
    color: #0000FF

}

#navigation-sub li a:hover {
    color: #000000;
}