可以< small>标签位于HTML5标题内(即h1，h2，h3等)? [英] Can a <small> tag be inside an HTML5 heading (i.e. h1, h2, h3, etc...)?

问题描述

我不确定HTML5中有关标题的约定，但我想知道是否可以在< h3> 中添加< small> ，就像这样(这可能适用于任何标题标签内的任何标签):

I'm not sure about the convention regarding headings in HTML5, but I wanted to know if I could add a <small> in a <h3>, like this (this could apply to any tag inside any heading tags):

<h3>Payment details <small>(this is your default card)</small></h3>

推荐答案

是的，该标记有效.您可以在 http://validator.w3.org/

Yes, that markup validates. You can check it yourself on http://validator.w3.org/

HTML5需要注意的一点是对块级元素概念的更改:

Something to be aware of with HTML5 though is a change to the notion of block-level elements: https://developer.mozilla.org/en/HTML/Block-level_elements

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