body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    font: 81.25%/1.5em Tahoma, Geneva, sans-serif;
    color: #222;
    background: #ffffff;
}
.content {
    width: 700px;
    height: 420px;
    margin: auto;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    max-width: 100%;
    max-height: 100%;
    overflow: visible;
    text-align: center;
}
ul, li, dl, dt, dd {
    display: inline-block;
    margin: 0;
    padding: 0;
}

a, a:link, a:visited {
    color: #000;
    text-decoration: underline;
}
a:hover {
    text-decoration: none;
}

.content canvas {
    left: 0;
    top: 0;
    position: absolute;
}
h1 {
    position: absolute;
    left: 34%; right: 34%;
    top: 34px;
    display: inline-block;
    padding: 13px;
    border: 1px solid #888888;
    border-radius: 6px;
    box-shadow: 0 0 10px rgba(0,0,0,0.5);
    font-size: 2em;
    font-weight: normal;
    background: #ffffff;
    color: #000;
}
h2 {
    position: absolute;
    left: 25%; right: 25%;
    top: 0;
    display: inline-block;
    padding: 0;
    font-size: 1.466em;
    font-weight: normal;
    background: #ffffff;
    color: #666;
}

dt {
    position: absolute;
    font-size: 1.1em;
    line-height: 1em;
    background: #ffffff;
    color: #666;
    padding: 5px;
}
dd {
    position: absolute;
    font-size: 1.333em;
    padding: 7px 9px;
    border: 1px solid #888888;
    border-radius: 6px;
    box-shadow: 0 0 10px rgba(0,0,0,0.5);
    background: #ffffff;
}
dd#d4a, dd#d4b, dd#d4c {
    font-size: 1em;
}
#t1 { left: 22%; top: 125px; }
#d1 { left: -1%; top: 175px; }
#t2 { left: 25%; top: 210px; }
#d2 { left: 14%; top: 290px; }
#t3 { left: 42%; top: 250px; }
#d3 { left: 35%; top: 350px; }
#t4 { right: 25%; top: 210px; }
#d4a { right: 4%; top: 260px; }
#d4b { right: 11%; top: 300px; }
#d4c { right: 18%; top: 340px; }
#t5 { right: 9%; top: 130px; }
#d5 { right: 1%; top: 170px; }