INTRODUCTION O NLINE shopping grows explosively in recent years. It helps describe the data that we’re displaying on the page so our users (don’t forget the users!) The heterogeneity of Web documents and the underlying HTML format, whose primary purpose is the presentation of data, make it difficult to process HTML documents for a semantic analysis aimed at heading hierarchy identification. The Treeflex CSS library lets you create a flexible, responsive, semantic, SEO-friendly hierarchy tree from nested HTML lists. Made with love and Ruby on Rails. 2. DEV – A constructive and inclusive social network for software developers. The central issue in these measures is the constant weighting assumption that all elements in the semantic representation of the concept possess the same relevance. It’s why we separate html and css. They give no indication as to what type of content they contain or what role that content plays in the page.Semantic HTML5 Semantic HTML goes beyond just headers and paragraphs. < Div > elem… Let me explain what I mean by this, by going through the steps to implement semantic HTML, with Apple’s webpage on Mac computers as an example. Other tags that describe their intention are listed on both sites. When you use semantic HTML, you not only make it easier for sighted users to understand your markup, but you also help unsighted users who rely on screen readers to make sense of your content organization. A