body { 
	background:#fff; 
}

#arrowfull, #arrowhalf { 
	fill:red; 
}
#arcdef, #arrowdef {
	stroke:red;
}
#raydef {
	stroke:#66f;
}

#fig {
	position:absolute;
	top:calc(50% - 57px); /* 57 is half the #ctrlback height */
	transform:translateY(-50%);
}

#ctrlback label {
	display:block;
	margin:0px 0px 2px 1px;
}