svg {
    border: 1px solid #000;
    background-color: #EBEEEE;
}
.chromosome-group {
    filter: url(#dropshadow);
}
.chromosome-group rect {
    fill: #FEFEFE;
}
.chromosome-group rect,
.chromosome-group polyline,
.chromosome-group .annot,
.chromosome-group line {
    stroke: rgba(0, 0, 0, 0.5);
    stroke-width: 1px;
}
.chromosome-group polyline {
    fill: none;
}
.chromosome-group .annot .tip-human {
    /*fill: #F00;*/
}
div.tooltip {	
    position: absolute;
    padding: 10px;
    font: 16px sans-serif;
    background: #FFF;
    border: 1px solid #000;
    border-radius: 4px;
    pointer-events: none;
    max-width: 300px;
}