Add CSS on code blocks

**Is your feature request related to a problem? Please describe.**
Add some CSS to the `code {}` selector
to have it looking more like a code block.

**Describe the solution you'd like**
A clear and concise description of what you want to happen.
Fast example, feel free to fine tune according to taste.
```
code {
display: inline-flex;
background-color: rgb(0 0 0 / 25%);
color: #ededed;
padding: 0.1em 0.25em;
font-size: 0.90em;
border-radius: 0.25em;
word-break: break-word;
white-space: pre-wrap;
margin: 1px 0 1px 0;
}

```

**Additional context**