Formatting off inside tags

Hi. I added a snippet to simplify adding code examples in my posts. I use the Google code prettify css to display code. The snippet was pretty simple

<pre class="prettyprint"><code>
{content}
</code></pre>

Unfortunately it appears that explicit line breaks,
, are added after each line of the {content} so the code comes out with a bunch of extra line breaks when the post is displayed. It makes the code double-spaced so to speak.

https://ww.wp.xz.cn/plugins/post-snippets/