body {
	background-color: rgb(36, 37, 38);
}

#control-panel {
	font-family: 'Caveat', cursive;
	font-size: 14px;
	position: fixed;
	top: 10px;
	left: 10px;
	color: lightgray;
	background: none;
	z-index: 100;
}

#control-panel input {
	color: yellow;
	background: none;
	border: none;
	border-bottom: 1px solid rgb(104, 104, 104);
	width: 50px;
	text-align: center;
	line-height: 150%;
}

span.value-btn {
	font-size: 12px;
	margin-left: 10px;
	padding: 2px 3px;
	cursor: pointer;
	background-color: black;
	border: 1px solid rgb(104, 104, 104);
}

#svg-container {
    position: fixed;
    top: 0px;
    left: 0px;
    border: none;
}

.ctrl-ball {
    stroke: white;
    fill: rgba(0, 0, 0, 0.397);
    cursor: hand;
}

.ctrl-ball.hide {
    stroke: none;
    fill: rgba(0, 0, 0, 0);
    cursor: hand;
}

.metaball-btn {
    font-family: 'Arial';
    font-size: 15px;
    color: lightblue;
    cursor: pointer;
} 

.metaball-point {
    stroke: none;
    fill: rgba(243, 227, 7, 0.384);
    pointer-events: none;
}

.boundary {
    stroke: yellow;
    stroke-width: 2;
    fill: none;
}

.boundary-ptn {
    fill: yellow;
    stroke: none;
}