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ISO (full name International Standards Organization) defines different letters/language defines the standard character set. In HTML 4.01 in, ISO-8859-1 is the default character.
Modern browsers support the following character sets:
ISO-8859-1 is the default character set for most browsers.
ISO-8859-1 the lower part (from 1 to 127 between the codes) is the original ASCII character set (0-9 the numbers, uppercase and lowercase English alphabet, and some special characters).
ISO-8859-1 the higher part (from 16to 255 between the codes) contains characters used in some Western European countries and some widely used special characters, all of which have entity names.
Most of these symbols can be used without entity references, but entity names or numbers provide a way to express symbols that are not easy to type on a keyboard.
HTML and XHTML reserves some characters. For example, you cannot use text containing these characters because browsers may mistake them for HTML tags.
HTML and XHTML must recognize the following five special characters listed in the table:
| Character | Entity number | Entity name | Description |
|---|---|---|---|
| Non-breaking space-Breaking space | |||
| ¡ | ¡ | ¡ | Inverted exclamation mark |
| ¢ | ¢ | ¢ | Cent symbol |
| £ | £ | £ | Pound symbol |
| ¤ | ¤ | ¤ | Currency symbol |
| ¥ | ¥ | ¥ | Yen symbol |
| ¦ | ¦ | ¦ | Broken vertical bar |
| § | § | § | Section symbol |
| ¨ | ¨ | ¨ | Spacing diaeresis |
| © | © | © | Copyright |
| ª | ª | ª | Feminine ordinal indicator |
| « | « | « | Left double angle quotation mark (angle quotation mark (left)) |
| ¬ | ¬ | ¬ | Negation |
| | | | Soft hyphen |
| ® | ® | ® | Registered trademark |
| ¯ | ¯ | ¯ | Spacing macron |
| ° | ° | ° | Degree symbol |
| ± | ± | ± | Plus-minus sign/Plus or minus-Or-Minus |
| ² | ² | ² | Superscript 2(superscript 2) |
| ³ | ³ | ³ | Superscript 3(superscript 3) |
| ´ | ´ | ´ | Spacing acute |
| µ | µ | µ | Micro symbol |
| ¶ | ¶ | ¶ | Paragraph symbol |
| · | · | · | Middle dot |
| ¸ | ¸ | ¸ | Spacing cedilla |
| ¹ | ¹ | ¹ | Superscript 1(superscript 1) |
| º | º | º | Masculine ordinal indicator |
| » | » | » | Right double angle quotation mark (angle quotation mark (right)) |
| 1/4 | ¼ | ¼ | 1/4 Fraction 1/4) |
| 1/2 | ½ | ½ | 1/2 Fraction 1/2) |
| 3/4 | ¾ | ¾ | 3/4 Fraction 3/4) |
| ¿ | ¿ | ¿ | Inverted question mark |
| Character | Entity number | Entity name | Description |
|---|---|---|---|
| À | À | À | Capital letter A with grave accent |
| Á | Á | Á | Capital letter A with acute accent |
| Â | Â | Â | Capital letter A with circumflex accent |
| Ã | Ã | Ã | Capital letter A with tilde |
| Ä | Ä | Ä | Capital letter A with umlaut mark |
| Å | Å | Å | Capital letter A with ring |
| Æ | Æ | Æ | Capital letter AE |
| Ç | Ç | Ç | Capital letter C with cedilla |
| È | È | È | Capital letter E with grave accent |
| É | É | É | Capital letter E with acute accent |
| Ê | Ê | Ê | Capital letter E with circumflex accent |
| Ë | Ë | Ë | Capital letter E with umlaut mark |
| Ì | Ì | Ì | Capital letter I with grave accent |
| Í | Í | Í | Capital letter I with acute accent |
| Î | Î | Î | Capital letter I with circumflex accent |
| Ï | Ï | Ï | Capital letter I with umlaut mark |
| Ð | Ð | Ð | Icelandic capital letter eth |
| Ñ | Ñ | Ñ | Capital letter N with tilde |
| Ò | Ò | Ò | Capital letter O with grave accent |
| Ó | Ó | Ó | Capital letter O with acute accent |
| Ô | Ô | Ô | Capital letter O with circumflex accent |
| Õ | Õ | Õ | Capital letter O with tilde |
| Ö | Ö | Ö | Capital letter O with umlaut mark |
| × | × | × | multiplication |
| Ø | Ø | Ø | The uppercase letter O, with a slash |
| Ù | Ù | Ù | The uppercase letter U, with a grave accent |
| Ú | Ú | Ú | The uppercase letter U, with an acute accent |
| Û | Û | Û | The uppercase letter U, with a circumflex accent |
| Ü | Ü | Ü | The uppercase letter U, with an umlaut mark |
| Ý | Ý | Ý | The uppercase letter Y, with an acute accent |
| Þ | Þ | Þ | The Icelandic uppercase letter THORN |
| ß | ß | ß | The German lowercase letter sharp s |
| à | à | à | The lowercase letter a, with a grave accent |
| á | á | á | The lowercase letter a, with an acute accent |
| â | â | â | The lowercase letter a, with a circumflex accent |
| ã | ã | ã | The lowercase letter a, with a tilde |
| ä | ä | ä | The lowercase letter a, with an umlaut mark |
| å | å | å | The lowercase letter a, with a ring |
| æ | æ | æ | The lowercase letter ae |
| ç | ç | ç | The lowercase letter c, with a cedilla |
| è | è | è | The lowercase letter e, with a grave accent |
| é | é | é | The lowercase letter e, with an acute accent |
| ê | ê | ê | The lowercase letter e, with a circumflex accent |
| ë | ë | ë | The lowercase letter e, with an umlaut mark |
| ì | ì | ì | The lowercase letter i, with a grave accent |
| í | í | í | The lowercase letter i, with an acute accent |
| î | î | î | The lowercase letter i, with a circumflex accent |
| ï | ï | ï | The lowercase letter i, with an umlaut mark |
| ð | ð | ð | The Icelandic lowercase letter eth |
| ñ | ñ | ñ | The lowercase letter n, with a tilde |
| ò | ò | ò | The lowercase letter o, with a grave accent |
| ó | ó | ó | The lowercase letter o, with an acute accent |
| ô | ô | ô | The lowercase letter o with a circumflex accent (circumflex accent) |
| õ | õ | õ | The lowercase letter o with a tilde (tilde) |
| ö | ö | ö | The lowercase letter o with an umlaut mark (umlaut mark) |
| ÷ | ÷ | ÷ | Division (division) |
| ø | ø | ø | The lowercase letter o with a slash (slash) |
| ù | ù | ù | The lowercase letter u with a grave accent (grave accent) |
| ú | ú | ú | The lowercase letter u with an acute accent (acute accent) |
| û | û | û | The lowercase letter u with a circumflex accent (circumflex accent) |
| ü | ü | ü | The lowercase letter u with an umlaut mark (umlaut mark) |
| ý | ý | ý | The lowercase letter y with an acute accent (acute accent) |
| þ | þ | þ | Icelandic lowercase letter thorn |
| ÿ | ÿ | ÿ | The lowercase letter y with an umlaut mark (umlaut mark) |