Introduction to the application of HTML tags superscript sup and subscript sub
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HTML tag: superscript In HTML, the <sup> tag defines superscript text. For example, if you want to display 2 oxygen ions, you need to write it as 2O<sup>2-</sup> in the HTML code. 2O2- The content contained in the <sup> tag and its closing tag </sup> will be displayed at half the character height of the current text flow, but with the same font and size as the text in the current text flow. Tip: This tag is useful for adding footnotes to documents and for indicating exponential values in equations. If used in conjunction with the <a> tag, it can create nice hyperlinked footnotes. HTML tag: subscript In HTML, the <SUB> tag defines subscript text. For example: if you want to display: H20, where 2 is the subscript, you need to write it as: H<SUB>2</SUB>0 in the HTML code. H2O The content contained in the <SUB> tag and its closing tag </SUB> will be displayed at half the character height of the current text flow, but with the same font and size as the text in the current text flow. |
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