#power-app{width:100%;margin:0 auto;text-align:center}input[type="number"]{width:50%;padding:12px 20px;margin:8px 0;box-sizing:border-box;border:2px solid #ccc;border-radius:2px}button{width:50%;background-color:#FF1861;color:#fff;padding:14px 20px;margin:8px 0;border:none;border-radius:2px;cursor:pointer;font-weight:700}button:hover{background-color:#1d3461}#output{margin:20px 0}