**2.1 Basic overview of HTML5**

HTML5, the fifth-generation hypertext markup language, is the most widely used language on the Internet. HTML5 technology has great advantages in supporting the display of various dynamic effects such as image, sound, video, and animation, which, therefore, is widely used in modern Internet advertising and is referred to as "HTML5" by Chinese people. With the popularity of instant messaging in the recent years, the function of browser has been integrated into WeChat, microblog, and other apps, so that HTML5 pages spread by such terminals can be directly browsed and involved by code scanning. The huge number of users and social attributes provide a convenient platform for the dissemination of HTML5 pages.

From the technical point of view, HTML5 is characterized by easy search, local storage, compatibility, connectivity, multimedia features, etc. It holds more prominent multimedia features than HTML4, shifting the dominance of flash and integrating process audio and video functions to facilitate audio and video processing in the network. Moreover, HTML5 is more effective in 3D effect rendering, which provides technical possibilities for further virtual reality applications.

At present, common HTML5 performance types are Visual, Audio, and Games. Among them, interaction, which integrates visual presentation and interactive behavior, is the most popular, and this kind of HTML5 has a higher focus on user experience. The addition of interaction technology enables users to participate in HTML5, not just passively and simply accept information [2]. The user interaction under the guidance of HTML5 audio-visual promotes the development of them, arousing their emotional resonance and making users willing to forward and share, thus further improving the dissemination scope and effect of HTML5 content.

HTML5 is widely used in information dissemination and brand marketing due to its various characteristics such as short cycle, low investment cost, convenience, easy dissemination, strong interactivity, time-consuming fragmentation, and strong interest. Therefore, HTML5 technology, a representative of new media technology, is combined with intangible cultural heritage, and with the support of multisensory design in vision, hearing, and touch, it contributes to the visualization and active inheritance of intangible cultural heritage culture, gives users a comprehensive experience for cognition, and makes cultural exchange more possible.

### **2.2 Significance of integrating HTML5 with cultural heritage communication**

Intangible cultural heritage is produced in a specific environment and culture. The emergence of digitization provides a new idea for the protection of national cultural heritage. In the past, intangible cultural heritage was widely spread among the elderly in the community. With the development of the Internet, an increasing number of new things have emerged on the Internet. A variety of network resources and foreign cultures attract young netizens and occupy their daily life, resulting in their lack of understanding and interest in their own traditional culture [3]. Therefore, to make the ancient intangible cultural heritage younger and be accepted, recognized, and loved by the public, it is of great importance to cultivate cultural confidence.

The development of new media technology has brought a number of new media, and the change of media has changed the way people understand the world. In the
