Costruire Siti Web

Hi, I need a small web application for storing cooking recipes; this web application will have these pages / features: - basic bootstrap template (I will use it on ipad tablet), no graphic needed - login page (no registration or recover my password, just login), set cookie expire to 2055 (so never :) ) - form to add / edit a recipe - list of stored recipes, with buttons for editing one recipe or show a recipe - show a recipe (no editing), with the possibility to change the number of servings (doing this, it will trigger an action that calculates the right quantities of the ingredients, showing updated values in the page) - the pages will work even offline (using html5 appCache) - pages will show a little alert online / offline on top of the page (I've already done this script, I can I would like to store the recipes in Firebase (I already have an account) and locally (html5 localStorage, webSql, indexedDB, or whatever technology you prefer); you should take care of syncing data as soon as I'm back online (no complex situations of multiple accesses from several devices, I'll use the app only from my tablet, so you should push data to Firebase; if I don't have any data on tablet, you'll get recipes from Firebase). Please send me your questions if you need clarifications! Thanks a lot.