*{box-sizing:border-box;margin:0;padding:0}body{background:#f5f7fa;color:#111827}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;border-radius:50%;background:#1b6afe;cursor:pointer}input[type=range]::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:#1b6afe;cursor:pointer;border:none}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:#f5f7fa}::-webkit-scrollbar-thumb{background:#d1d5db;border-radius:2px}