更改

<div style="float:right; border-width: 1px; border-color: black; text-align: center;  border-style: solid; max-width: min(100%, 15rem); right: 1rem; top: 1rem; display: block; margin: 0.5rem; padding: 0.5rem">

<p style="font-size: 0.5rem">{{{pretitle}}}</p>

|style=max-width: min(100%, 15rem); display: block; margin: 0.5rem; padding: 0.5rem

<p style="font-size: 1.5rem">{{{title}}}</p>

<p style="font-size: 0.3rem; margin: 0; text-align: center">{{{pretitle}}}</p>

<p style="font-size: 1.5rem; margin: 0; text-align: center">{{{title}}}</p>

{{{content}}}

{{{content}}}