Just inherit the background from the previous span <span style="background: #ff0000;"> text size normal <br /><br /> <br /><br /> <span style="font-size: ... ... <看更多>

So what does it map to? Well, it turns out, it depends on the font family. For the following HTML: <span style= ... ... <看更多>

... page's "Paragraph" widget and then copy and paste it, the pasted text gets wrapped in a span tag with the font-size style set to 1rem. ... <看更多>