body{margin:0;padding:0;font-family:Arial,sans-serif}input{border:1px solid #ccc;border-radius:4px;margin-right:5px;padding:6px}button{cursor:pointer;border:none;border-radius:4px;padding:6px 10px}.add-btn{color:#fff;background:#00f}.edit-btn{color:#fff;background:orange}.delete-btn{color:#fff;background:red}.save-btn{color:#fff;background:green}