If you've ever had to roll up trousers, shorten sleeves or pay for a dress to be altered, this is the collection M&S hopes will solve those problems. Best pieces to shop from the new M&S petite collectionThe full collection is here - these are the standout favourites. Polka Dot Midi Dress – £42The standout piece of the collection is a timeless black-and-white polka dot midi dress that works just as well with trainers for daytime as it does with heels for weddings or special occasions. Price: £45Satin Cowl Neck Lace Insert Midi Dress – £48Perfect for autumn events, parties or wedding guests, this elegant satin slip dress combines a flattering cowl neckline with delicate lace detailing. Price: £40Why Dannii Minogue says the collection mattersAs someone who has long championed petite fashion, Dannii says finding clothes that genuinely fit can make a huge difference to confidence.