Common HTML scriptlevel width problem

Created by: thewilkybarkid

Having a <mstyle scriptlevel="+1"> and using Common HTML seems to cause a width to be miscalculated in

screen shot 2018-04-24 at 10 15 58

(http://jsbin.com/piciyufabo/1/edit?html,output)

Remove the scriptlevel sees it work:

screen shot 2018-04-24 at 10 16 13

(http://jsbin.com/wupalifula/1/edit?html,output)

HTML-CSS and SVG render correctly.