Hello,

Exporting images created with tikz to html.files seems a complicated task.

This file is corrected exported into pdf:

#+OPTIONS: LaTeX:verbatim
#+OPTIONS:      tex:imagemagick
#+LaTeX_CLASS: article
#+LaTeX_CLASS_OPTIONS: [koma,a4paper,11pt]
#+LaTeX_CLASS_OPTIONS: [times]
#+LaTeX_HEADER: \usepackage{tikz}
#+LANGUAGE: en
#+OPTIONS: ':t
#+OPTIONS: tex:t


* Tikz test
Here's a tree, exported to both html and pdf.

#+begin_src latex
  \usetikzlibrary{trees}
  \begin{tikzpicture}
    \node [circle, draw, fill=red!20] at (0,0) {1}
    child { node [circle, draw, fill=blue!30] {2}
      child { node [circle, draw, fill=green!30] {3} }
      child { node [circle, draw, fill=yellow!30] {4} }};
  \end{tikzpicture}
#+end_src

But I do not succeed to export it into a html file.

Your help is welcome.

Best wishes

Jo.