Original: The Image-spec parameter "thumb" (although auto-thumbnailing to user-preference width) forces a wide left-margin that squeezes the nearby text, so the parameter "center" can be added to suppress the left-margin padding.
Simplified: The Image-spec parameter "thumb" (although auto-thumbnailing to user-settings width) forces a wide left-margin that squeezes the nearby text, so the parameter "center" can be added to suppress the left-margin padding.