First: <abbr> or <acronym> These two symbols mean the same thing, and are mainly used for some English abbreviations. When you move the mouse over them, you will find a small prompt to show the full name of the abbreviation. Here is an example: <ABBR title="HyperText Markup Language">HTML </ABBR> <ABBR title="Institute of Electrical and Electronics Engineers"> IEEE </ABBR> <ABBR title="Read the Fucking Source Code">RTFSC</ABBR> The second one: <q> This symbol mainly puts the quoted text in double quotes. This symbol seems to be meaningless. The official reason is that this is for convenience, but I always feel that this notation is not as convenient as directly entering double quotes. It seems like nothing. Could it be that this logo can only be seen in Firefox and IE does not support it? Here is an example: This is a quote <Q>This is a quote</Q> This is a quote Thirdly, the <bdo> symbol is very interesting, as it can reverse the order of letters from left to right. For example: May I help you sir? If this mark is added, it will look like this: May I help you sir? What can I do for you? <BDO dir=rtl>May I help you sir ?</BDO> <BDO dir=rtl>What can I do for you sir? </BDO> May I help you sir? How can I help you? The fourth one, <del>, deletes the string. Such as: This is a deleted text. <DEL>This is a deleted text</DEL> This is a deleted text The fifth and sixth ones, <sub><sup> are subscript and superscript. Here are examples: This is a subscript, and this is a superscript. This is a <SUB>subscript</SUB>, this is a <SUP>superscript</SUP> |
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