index.html - home page
product.html - market showing all items on trade
product detail.html - show only 1 traded item details
account.html - register/login
profile.html - show user profile details
cart.html - other users' items added by user which readily for barter
favourite.html - other users' items that user keep as interest
message.html - message inbox between users
add.html - add information of item to be traded
exchange.html - pick previous added item for barter
style.css ->index.html,product.html,product detail.html,account.html
profileStyle.css ->profile.html
user.css ->cart.html,favourite.html,add.html
inbox.css ->message.html
popup.css ->exchange.html