What is the difference between html5 and html4?

HTML5 vs. HTML4: Introduces new semantic elements to provide a more semantic way of organizing content. Provide more advanced form controls to simplify user input. Native support for audio and video, no plug-ins required. Has inherent semantic role to improve accessibility. Introducing accessibility attributes to provide more accessibility information. The parsing rules are looser and more fault-tolerant. Other improvements such as offline storage, geolocation, and drag-and-drop are introduced.

The difference between HTML5 and HTML4

HTML5 is the latest version of the HTML language, which is based on HTML4 significant improvements. The following are the main differences between HTML5 and HTML4:

Structure and Semantics

• New semantic elements: HTML5 introduces <header></header>, <nav></nav>, <section></section>, <article></article> and other new elements, these elements provide A more semantic way to organize content.
• Better form controls: HTML5 introduces <input type="email">, <input type="date">, <code><input type="number"> and other more advanced form controls simplify user input.
• Media support: HTML5 natively supports audio (<audio></audio>) and video (<video></video>), no plugins required.

Accessibility

• Semantic role: HTML5 elements have an inherent semantic role that makes screen readers and others Assistive technology makes it easier to parse content.
• Accessibility Attributes: HTML5 introduced <aria-></aria-> attributes that provide accessibility information about an element.

HTML parsing

• More loose parsing: HTML5 has looser parsing rules, allowing the browser to Gracefully degrade on error.
• Fault Tolerance: HTML5 browsers can tolerate errors common in HTML4, improving web compatibility.

Other improvements

• Offline storage: HTML5 introduces localStorage and sessionStorage , enables web applications to access data when the network is disconnected.
• Geolocation: HTML5 provides the navigator.geolocation API that allows web applications to obtain the user's location information.
• Drag and drop: HTML5 introduces the draggable and droppable attributes to support native drag and drop.

These differences make HTML5 a more powerful, flexible, and accessible web development platform.

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