25 Free HTML 5 And CSS3 Accordion Styles: HTML or Hyper Text Markup Language is a popular language used for building web pages and other information that can be displayed in a web browser. HTML is written in the form of tags that includes a starting tag and an end tag. Since it has been introduced, HTML has been the building block for all websites. Over the years, many new versions of HTML have emerged and HTML 5 is the latest development. HTML5 focuses on displaying web pages on smart phones, android applications and so on. On the other hand, CSS or Cascading Style Sheets is a language that is used for describing the presentation semantics in websites. It styles markup language; HTML and XML being the most popularly used languages. CSS separates document content from document presentation including elements like layout, colors and fonts. Like HTML, CSS too has emerged with various versions and CSS 3 is the current version. HTML 5 and CSS 3 accordion styles are used to build striking website designs featured with good layout, color combination and perfect typography. Accordion is a multi-level menu which has fixed height and width. This can be used as a room for creating sub-items underneath the main menu. For your convenience, here is a list of 25 Free HTML and CSS 3 accordion styles that can be used for web designing and development task. Explore this gallery of 25 free HTML5 and CSS3 accordion styles and get better insights on its implementation.