W3Schools 在线编辑工具（TIY） V3.0
编辑的代码:
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<html xmlns:t="urn:schemas-microsoft-com:time"> <head> <?import namespace="t" implementation="#default#time2"> <style>.t {behavior: url(#default#time2)}</style> </head> <body> <t:seq repeatCount="indefinite"> <h2 class="t" dur="1s"> I will display for one second</h2> <h2 class="t" dur="2s"> I will display for two seconds</h2> <h2 class="t" dur="3s"> I will display for three seconds</h2> </t:seq> </body> </html>