index.css

body {
	background-color: LightGrey;
	-webkit-app-region: drag;
}

#exit {
	-moz-box-shadow:inset 0px 1px 0px 0px #ffffff;
	-webkit-box-shadow:inset 0px 1px 0px 0px #ffffff;
	box-shadow:inset 0px 1px 0px 0px #ffffff;
	background:-webkit-gradient(linear, left top, left bottom, color-stop(0.05, #969696), color-stop(1, #c9c9c9));
	background:-moz-linear-gradient(top, #969696 5%, #c9c9c9 100%);
	background:-webkit-linear-gradient(top, #969696 5%, #c9c9c9 100%);
	background:-o-linear-gradient(top, #969696 5%, #c9c9c9 100%);
	background:-ms-linear-gradient(top, #969696 5%, #c9c9c9 100%);
	background:linear-gradient(to bottom, #969696 5%, #c9c9c9 100%);
	filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#969696', endColorstr='#c9c9c9',GradientType=0);
	background-color:#969696;
	-moz-border-radius:6px;
	-webkit-border-radius:6px;
	border-radius:6px;
	border:1px solid #dcdcdc;
	display:inline-block;
	cursor:pointer;
	color:#000000;
	font-family:Arial;
	font-size:12px;
	font-weight:bold;
	padding:6px 24px;
	text-decoration:none;
	text-shadow:0px 1px 0px #ffffff;	
}

#exit:hover {
	background:-webkit-gradient(linear, left top, left bottom, color-stop(0.05, #c9c9c9), color-stop(1, #969696));
	background:-moz-linear-gradient(top, #c9c9c9 5%, #969696 100%);
	background:-webkit-linear-gradient(top, #c9c9c9 5%, #969696 100%);
	background:-o-linear-gradient(top, #c9c9c9 5%, #969696 100%);
	background:-ms-linear-gradient(top, #c9c9c9 5%, #969696 100%);
	background:linear-gradient(to bottom, #c9c9c9 5%, #969696 100%);
	filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#c9c9c9', endColorstr='#969696',GradientType=0);
	background-color:#c9c9c9;
}

#exit:active {
	position:relative;
	top:1px;
}

.node:hover image{
  cursor: pointer;
}

.node text {
  font: 10px sans-serif;
}

.link {
  fill: none;
  stroke: rgb(0, 0, 0);
  stroke-width: 1.5px;
}

.tooltip {
	position: absolute;
	text-align: center;
	width: auto;
	height: 12px;
	padding: 4px;
	margin-top: -20px;
	font: 10px sans-serif;
	background: rgb(253, 253, 253);
	pointer-events: none;
	border-style: "solid";
	border-width: "0.5px";
  }

.GraphBackground{
	border-style: "solid";
	border-width: "0.5px";
}