Are there any restrictions for using HTML tags in “html” field?

问题

According to https://developers.google.com/glass/v1/reference/timeline#html one can use HTML.

Are there any restrictions for using HTML tags in "html" field?

回答1:

We will update the documentation regarding this shortly but in the meantime, here are the restrictions:

• Allowed HTML elements: Use these elements in your timeline cards.
  • Headers: h1, h2, h3, h4, h5, h6
  • Images: img
  • Lists: li, ol, ul
  • HTML5 semantic: article, aside, details, figure, figcaption, footer, header, nav, section, summary, time
  • Structural: blockquote, br, div, hr, p, span
  • Style: b, big, center, em, i, u, s, small, strike, strong, style, sub, sup
  • Tables: table, tbody, td, tfoot, th, thead, tr
• Blocked HTML elements: These elements, and their contents, are removed from html payloads.
  • Document headers: head, title
  • Embeds: audio, embed, object, source, video
  • Frames: frame, frameset
  • Scripting: applet, script
• Other elements: Any elements not listed above are removed, but their contents are preserved.

来源：https://stackoverflow.com/questions/16045816/are-there-any-restrictions-for-using-html-tags-in-html-field