Sample HTML file: produced with lwarp, with mathematical formulae displayed with MathJax, and xymatrix commutative diagrams displayed with XyJax-v3

5.2 A tikz image compiled as an image with alt text:
Size can be adjusted. Sometimes (depending on operating system, it seems) the image may be incorrectly cropped. See figure 1.

(An equilateral triangle, with one of the edges horizontal.     Vertices are labelled 1, 2 and 3, clockwise, starting from the top left vertex.)

Figure 1: An equilateral triangle with its vertices labeled 1, 2 and 3