defs {
    #arrow {
        path {
            stroke: #CCC;
            stroke-opacity: 0.2;
            fill: #CCC;
            opacity: 1;
        }
    }
}

.edge{
    text { stroke-width: 0; }
    .edge-handler {
        fill: none;
        stroke: none;
    }
    .edge-line {
        fill: none;
    }

    &.active{
        text {
            display: none;
            fill: white;
            font-weight: 200;
            text-anchor: middle;
            text-shadow: 1px 1px #333, -1px 1px #333, 1px -1px #333, -1px -1px #333;
            z-index: 1000;
        }
    	&:hover, &.selected {
    	    cursor: pointer;
            text { display: block;}
	    }
    	&.highlight {
            text { display: block;}
    	}
    }
}