<html><head><style> p.test1 { writing-mode: horizontal-tb; }span.test2 { writing-mode: vertical-rl; }p.test2 { writing-mode: vertical-rl; }</style></head><body><h1>writing-mode 属性</h1><p class="test1">Some text with default writing-mode.</p><p>Some text with a span element with a <span class="test2">vertical-rl</span> writing-mode.</p><p class="test2">Some text with writing-mode: vertical-rl.</p></body></html>