这篇内容讨论了Java Swing组件如JButton和JLabel对HTML的支持。这些组件仅支持基本的HTML标签，如`<b>`和`<i>`用于内联样式，字符串需以`<html>`包裹以标识含有HTML。然而，它们不实现CSS2.x的视觉格式化模型，因此HTML4的样式属性和CSS盒模型无效。若需丰富的HTML格式化，建议使用内置浏览器组件。
In short: no; HTML 3 only, before CSS.
The "HTML" supported by JLabel, JButton, etc, is things like and to provide inline styling of label textual content.
To indicate that an HTML supporting component contains HTML, the string value must be wrapped in ""; this is for backward compatibility with existing code. For example:
button = new JButton("Two
lines");
JLabel does not provide an implementation of the CSS 2.x visual formatting model, so HTML4 style="" attributes and CSS box formatting will not work. If you want rich HTML formatting support then you'll need to use a web-browser component.
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