<p style="font-size: 12px;color:#aaa;">版权引用：<a href="https://www.pexels.com/photo/yellow-blue-sky-blue-color-observation-wheel-6512174/"><span style="font-size: 12px;color:black;">“of blue color, blue sky, observation wheel”</span> </a>由 <a href="https://www.pexels.com/@nguy-n-hi-u-1273775"><span style="font-size: 12px;color:black;">Nguyễn Hiếu</span></a> 授权许可 <span><a href="https://www.pexels.com/photo-license/" target="_blank" style="font-size: 12px;color:black;">Pexels License<img src="" style="display: inline-block;height: 16px;width: auto;"></a></span></p>