How do you build a taxonomy-based menu system on a website
Hi, I am a web designer based in the UK. I am hoping someone can advise me on what system one has to use to enable filtering of products (image and text) on a website, by keywords, for e.g. color or brand. I would be very grateful of any help, of a pointer in the right direction. Have gone round in circles for days, Googling, asking questions on forums but am getting nowhere. My experience is in HTML and CSS and the website is already built. Will I have to start from scratch? Does it involve another language? Is it something that I can build myself, or is it a system that I pay for and then install? I really am a beginner in this area. Thank you for your help. Greatly appreaciate any advice.