Exporting InDesign HTML for a Coding Website

Hi,
I’ve tried exporting HTML from InDesign for a few projects too. The built-in export works fine for basic layouts, but for responsive designs it usually needs some manual cleanup afterward.
Things that helped me:

Removing extra inline styles

Compressing images before upload

Checking the layout in different screen sizes and fixing spacing manually

It takes a bit of tweaking, but the result turns out much better.

I have had good luck exporting well-stuctured ID documents to what is now called Legacy HTML, especially with judicious use of CSS on export.

That said, ID is not and never will be a web-page design tool, so expecting the results you'd get from direct coding or DreamWeaver or such, including responsive code etc., isn't reasonable. But you can get a pretty decent... content draft? HTML manuscript? content block? to drop into a fully formed web page structure.

The new HTML5 export is... worth looking at, as it combines Publish Online's detailed conversion of ID layouts with plain HTML viewing (not requiring the PO host and and platform). I deeply dislike its technical approach of extensively mapping every element into place, like FXL EPUB, and thus being all but un-editable after export. But it might be a (partial) solution for you.

Do you need to export some example code placed in the InDesign document - placed as text - or rather complete InDesign document?