Navigation list at the bottom of the cw_home. html page is a navigation list with the id #bottom containing several ul elements. sofia wants these ul elements laid out side-by-side. open the cw_styles. css file and create a style rule for the bottom navigation list displaying it as a flexbox row with no wrapping. set the justify-content property so that the flex items are centered along the main axis. be sure to include the -webkit browser extension in all of your flex styles. define flex values for ul elements within the bottom navigation list so that the width of those elements never exceeds 150 pixels but can shrink below that value.