Format text in a document:
1. Definition and Usage
The <big> tag is not supported in HTML5. Use CSS instead.
The <big> tag is the font-style tag. It renders content as bigger text. Font-style tags are defined in HTML4, but it is strongly recommended to use CSS styling instead.
Note: <big> is removed from the HTML5 version. Avoid using them.
2. Differences Between HTML 4.01 and HTML5
The <big> tag is not supported in HTML5, but is supported in HTML 4.01.
3. Standard Attributes
The <big> tag supports the Standard Attributes in HTML.
4. Event Attributes
The <big> tag also supports the Standard Event Attributes in HTML.