結果を表示する
元にもどす
<html lang="ja"> <meta charset="utf-8"> <style>span:nth-child(odd){color:#ff0000;}</style> <span>1</span><span>2</span><span>3</span><span>4</span><span>5</span><span>6</span><span>7</span><span>8</span><span>9</span> </html>