Step 5 of parsing was always skipped because step 4 continues.
Running step 5 causes some of the denominators to be 0 and causes
divide by zero error in CSSPixelFraction.
SVG Image with height of 0 will cause divide by zero error when
calculating intrinsic aspect ratio of SVGDecoderImageData.
We also get a divide by zero error in AlignContent::SpaceBetween of the
FlexFormatingContext.
During auto track stretching in GridFormatingContext there is a
possibility for count_of_auto_max_sizing_tracks to stay 0.