The position of the picture and text is inconsistent between Sparkle and the actual web page

The content of the webpage I designed in Sparkle looks like this:
【For this reason, I can only put one picture.】[Sorry, new users can only put one embedded media item in a post.]
There is no text on both sides of the picture.

But in the web page, it looks like this:

There is text around the picture.

How can I fix this error?

The above content comes from google translation, it may read weird…

Sorry if the forum doesn’t let you post, please email us. I’m really not sure what the issue is there.