body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;padding:1rem}.control-row{display:flex;align-items:center;flex-wrap:wrap}.control-row>*{flex:1 1 70px;min-width:70px}.small{font-size:.9rem}.card{padding:.75rem;border-radius:.5rem;border-width:3px;border-style:solid;border-color:gray}.card.on{border-color:#2bb}select{padding-top:2px;padding-bottom:2px;padding-inline-start:8px!important}footer{margin-top:1rem;font-size:.85rem}.power-button{cursor:pointer;font-size:2.5rem;color:gray;transition:color .1s}.power-button.on{color:#2bb}