.links line{stroke:#999;stroke-opacity:.6}.nodes circle{stroke:#fff;stroke-width:1.5px}text{font-family:sans-serif;font-size:10px}div.tooltip{position:absolute;text-align:left;padding:2px;font:12px sans-serif;background:lightblue;border:0px;border-radius:8px;pointer-events:none}line:hover{stroke:#ff0;stroke-width:8px}div#network_div{position:relative}#network_reset_button{border:none;cursor:pointer;color:#999;position:absolute;right:5px;top:5px;background-color:#0000}#network_reset_button:hover{color:#555}