Abstract: This paper introduces the development background of HTML5, the main differences between HTML5 and HTML4 and the new characteristics of HTML5, such as the canvas element, painting for media playback of video and audio elements, local offline storage and new form controls. Taking the Website of Zhoukou Normal University as an example, using HTML5 code to achieve site, improve the site's execution speed, and let visitors to get better access to experience. Taking the website Flash animation as an example, it discuss