You can remove the preloader, (div / css / js).
I'm oke with putting live. Will be easier for me to fix some css issues.
The navigation probably needs some changes so the main/index page is clickable.
The dropdown icons need to be an <i>icon</i>
and not by css :after. This way the icon can be used to dropdown and not the index page title. Needs some modification in the script too but it would be nice to have a live version to see how the navigation now looks like.
For Code Highlight I think we need some js to fix that.
Seems the current docs use:
//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/github.min.css
//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/highlight.min.js
//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/languages/php.min.js
Ah forgot about that, maybe you can download it here and add it?
Here is the logo: https://evo-cms.com/theme/img/logo.png
Here is the favicon: https://evo-cms.com/favicon.ico