Use Lowercase Tags

Web Designing HTML5/CSS Tutorial

Use Lowercase Tags
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HTML tags are not case sensitive:

means the same as

.

The HTML5 standard does not require lowercase tags, but W3C recommends lowercase in HTML and demands lowercase for stricter document types like XHTML.

The element defines the whole document.

It has a start tag and an end tag .

The element content is another HTML element (the element).