This Specialization teaches you how to write syntactically correct HTML5 and CSS3, as well as how to use JavaScript to create interactive web experiences. Understanding this range of technologies will enable you to create high-quality web sites that work seamlessly on mobile, tablet, and large-screen browsers. During the capstone, you will create a professional-quality web portfolio to demonstrate your progress as a web developer and your understanding of accessible web design. You must be able to develop and implement a responsive website that makes use of resources to make it accessible to a large audience, including individuals who have visual, auditory, physical, and cognitive limitations.