.neuron.active{background:radial-gradient(circle,rgba(255,0,0,.3),rgba(255,0,0,.2));border-color:rgba(255,0,0,.8);transform:scale(1.2);box-shadow:0 0 50px rgba(255,0,0,.6)}.neuron-label.show{opacity:1;transform:translateX(0) scale(1)}