Properly determine container width for shrink-wrapped elements in CommonHTML.  Issue #1478.
Properly determine container width for shrink-wrapped elements in CommonHTML.  Issue #1478.

GerHobbelt/MathJax,jinntrance/mathjax,jinntrance/mathjax,wikimedia/MathJax,dpvc/MathJax,GerHobbelt/MathJax