‘Twixmas – the time for the tracksuit bottoms to shine. Nobody is really sure what day it is, let alone know what to wear. We’ve bid farewell to the Christmas jumpers, yet can spy a sequin dress on the horizon, ready to take New Year’s by storm. Luckily, we have Lily James to help keep us afloat during these vexing few days. The actress has been revelling in festivities at home, glimpses of which she shared via social media on Sunday. Taking to her Instagram Stories, the English actress showed off her chosen attire for her time spent with friends and family – delighting her fashionable fans with her elegant look. The 36-year-old slipped into a backless midi dress while dancing around a Christmas tree beside a toddler (due to recent bikini snaps and lack of visible baby bump, we assume not hers). Complete with a suede construction, a pale beige colourway and an A-line skirt that flared as the star twirled with festive glee, the outfit made for a bohemian take on Christmas dressing.  …