host style requires CSP with style-src 'unsafe-inline'

Is there another way to style the host as block without an inline style? Or could there be a mechanism for the host page to control the insertion of this style?

https://github.com/github/include-fragment-element/blob/75ac8d9978339004ec7fe4e73c121d64ccea6c3b/src/include-fragment-element.ts#L96-L98

阅读 src/include-fragment-element.ts 第 96-98 行，以了解主机样式是如何插入的。在禁止内联样式的 CSP 下复现该行为，然后定义并验证一项更改，以避免这一要求，或让宿主页面控制样式插入。

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