Charlie
I think the point here is is really:
You have to be an ADE
'quirk' expert
Your HTML skills can be very good, but ADE and others will barf all over your feet if you don't do it "My Exact Way"
I have chased around, trying to get something to work, only to discover that a 'tiny'
cosmetic error (like your space) will cause ADE to toss the whole style, silently (cause there is no error consoles, to look at in the viewers).