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In this article Xiaobian for you to introduce in detail "what are the special characters in HTML/CSS", the content is detailed, the steps are clear, the details are handled properly, I hope this article "what are the special characters in HTML/CSS" can help you solve your doubts, the following follows the editor's ideas slowly in depth, together to learn new knowledge.

Briefly introduce how to use it:

1. These characters belong to the unicode character set, and your document needs to be declared as "utf-8"

2. There are two columns of numbers after the list symbol. The first column number is used in HTML documents. It needs to be preceded by a "& #" symbol. For example, the HTML number corresponding to the "left Arrow" symbol is "8672", so it needs to be written as "& # 8672" in the document. The second column number for CSS documents, need to be preceded by a backslash "" for escape, for example, the "left arrow" symbol corresponding to the CSS number is: "21E0", then the document needs to be written as "21E0"; at the same time, the second column can also be used in JavaScript documents, you need to add "u" before the number to escape, such as the "left arrow" symbol, in JavaScript documents, we have to write as "u21E0".

The method is simple, but to use it well, we still need to pay attention to some detailed requirements:

1. Some characters behave differently in different browsers, such as "Little Snowman" in Firefox and Chrome.

2. Some characters will not be displayed in a browser.

3. In order not to cause loss, when using character encoding instead of some symbols, please pay attention to each browser for testing

4. The mobile terminal has poor support for this, especially under Window phone and UC browsing, which cannot be displayed directly.

Based on the above deficiencies, please consider carefully during the use process. For a detailed list, please see:

Catalogue

Arrow class

Basic shape class

Monetary category

Mathematics class

Music symbol class

Right and wrong number

It's all stars.

Constellation class

Chess category

Playing cards

Greek alphabet

Cross

Legal symbol

Punctuation and symbols

⇠ Arrowhead symbols UNICODE symbols UNICODEHTMLJSCSSHTMLJSCSS ⇠ & # 8672u21E021E0 ⇢ & # 8674u21E221E2 ⇡ & # 8673u21E121E1 ⇣ & # 8675u21E321E3 ↞ & # 8606u219E219E ↠ & # 8608u21A021A0 ↟ & # 8607u219F219F ↡ & # 8609u21A121A1 ← & # 8592u21902190 → & # 8594u21922192 ↑ & # 8593u21912191 ↓ & # 8595u21932193 ↔ & # 8596u21942194 ↕ & # 8597u21952195 ⇄ & # 8644u21C421C4 ⇅ & # 8645u21C521C5 ↢ & # 8645u21C521C5 ↣ & # 8645u21C521C5 # 8610u21A221A2 & # 8610u21A221A2 & # 8610u21A221A2 # 8610u21A221A2 & # 8610u21A221A2 # 8610u21A221A2 & # 8610u21A221A2 # 8610u21A221A2 & # 8645u21C521C5 # 8610u21A221A2 & # 8645u21C521C5 # 8610u21A221A2 & # 8621u21AD21AD ⇦ & # 8678u21E621E6 ⇨ & # 8680u21E821E8 ⇧ & # 8679u21E721E7 ⇩ & # 8681u21E921E9 ▲ & # 9650u25B225B2 ► & # 9658u25BA25BA ▼ & # 9660u25BC25BC ◄ & # 9668u25C425C4 ➔ & # 10132u27942794 ➙ & # 10137u27992799 ➨ & # 10152u27A827A8 ➲ & # 10162u27B227B2 ➜& # 10140u279C279C ➞& # 10142u279E279E ➟ & # 10143u279F279F ➠ & # 10144u27A027A0 ➤ & # 10144u27A027A0 ➥ & # 10148u27A427A4 ➦ & # 10148u27A427A4 & # 10149u27A527A5 & # 10149u27A527A5 # 10149u27A527A5 & # 10150u27A627A6 # 10150u27A627A6 & # 10149u27A527A5 & # 10149u27A527A5 & # 10148u27A427A4 & # 10148u27A427A4 & # 10148u27A427A4 & # 8634u21BA21BA ↵ & # 8629u21B521B5 ↯ & # 8623u21AF21AF ➾ & # 10174u27BE27BE

❤ basic shape symbol UNICODE symbol UNICODEHTMLJSCSSHTMLJSCSS ❤ & # 10084u27642764 ✈ & # 9992u27082708 ★ & # 9733u26052605 ✦ & # 10022u27262726 ☀ & # 9728u26002600 ◆ & # 9670u25C625C6 ◈ & # 9672u25C825C8 ▣ & # 9635u25A325A3 ☻ & # 9787u263B263B ☺ & # 9786u263A263A ☹ & # 9785u26392639 ✉ & # 9993u27092709 ☎ & # 9742u260E260E ☏ & # 9743u260F260F ✆ & # 9990u2706270665533uFFFDFFFD & # 65533uFFFDFFFD ☁ & # 65533uFFFDFFFD ☂ & # 9729u26012601 ❄ & # 9729u26012601 & # 9730u26022602 & # 9730u26022602 & # 10052u27442744 & # 10052u27442744 & # 9730u26022602 & # 9730u26022602 9749u97499749 ❂ & # 10050u27422742 ☥ & # 9765u26252625 ☮ & # 9774u262E262E ☯ & # 9775u262F262F ☪ & # 9770u262A262A ☤ & # 9764u26242624 ✄ & # 9988u27042704 ✂ & # 9986u27022702 ☸ & # 9784u26382638 ⚓ & # 9875u26932693 ☣ & # 9763u26232623 ⚠ & # 9888u26A026A0 ⚡ & # 9889u26A126A1 ☢ & # 9762u26222622 ♻ & # 9851u267B267B ♿ & # 9855u267F267F ☠ & # 9760u26202620 ¥currency symbol UNICODE UNICODE 024 & # UNICODEHTMLJSCSSHTMLJSCSS$$u0024 UNICODEHTMLJSCSSHTMLJSCSS$$u0024, & & # 162u00A2 UNICODEHTMLJSCSSHTMLJSCSS$$u0024 & # 162u00A2 162u00A2 & # 8364u20AC20AC20AC20AC20AC20AC20ACY & & # 8369u20B120B1bicycle & # 162u00A2 to mathematical symbols UNICODE symbol UNICODEHTMLJSCSSHTMLJSCSS UNICODE & # 189u00BD "0BD quarter & # 188u00BC" 0BC & # 190u00BE "0BE ⅓ & # 8531u21532153 ⅔ & # 8532u21542154 ⅛ & # 8539u215B215B ⅜ & # 8540u215C215C ⅝ & # 8541u215D215D ‰ & # 8240u20302030%%u0025" 025>u003E "03e ♫ Musical symbol UNICODE symbol UNICODEHTMLJSCSSHTMLJSCSS ♩ & # 9833u26692669 ♪ & # 9834u266A266A ♫ & # 9835u266B266B ♬ & # 9836u266C266C ♭ & # 9837u266D266D ♯ & # 9839u266F266F ✖ error symbol UNICODE symbol UNICODE

& # 160u00A0 permanent 0A0 ☐ & # 9744u26102610 ☑ & # 9745u26112611 ☒ & # 9746u26122612 ✓ & # 10003u27132713 ✔ & # 10004u27142714 ✕ & # 10005u1000510005 ✖ & # 10006u27162716 ✗ & # 10007u27172717 ✘ & # 10008u27182718 ★ are all star symbols UNICODEHTMLJSCSSHTMLJSCSS ★ & # 9733u26052605 ✭ & # 10029u272D272D ✮ & # 10030u272E272E ☆ & # 9734u26062606 ✪ & # 9734u26062606 ✡ & # 10026u272A272A ✯ & # 10026u272A272A ✵ & # 10026u272A272A ✶ & # 10017u27212721 & # 10017u27212721 & # 10017u27212721 & # 10031u272F272F & # 10017u27212721 & # 10017u27212721 & # 10017u27212721 & # 10017u27212721 & # 10026u272A272A & # 10026u272A272A & # 10026u272A272A # 10043u273B273B ✽ & # 10045u273D273D ❋ & # 10059u274B274B ❆ & # 10054u27462746 ❄ & # 10052u27442744 ❅ & # 10053u27452745 ♒ Constellation symbol UNICODE symbol UNICODEHTMLJSCSSHTMLJSCSS ♈ & # 9800u26482648 ♉ & # 9801u26492649 ♊ & # 9802u264A264A ♋ & # 9803u264B264B ♌ & # 9804u264C264C ♍ & # 9805u264D264D ♎ & # 9806u264E264E ♏ & # 9807u264F264F ♐ & # 9808u26502650 ♑ & # 9808u26502650 ♒ & # 9809u26512651 ♓ & # 9809u26512651 ♚ Chess symbol 9809u26512651 # 9810u26522652 & # 9810u26522652 & # 9811u26532653 & # 9811u26532653 # 9811u26532653 & # 9810u26522652 # 9810u26522652 & # 9809u26512651 # 9812u26542654 ♕ & # 9813u26552655 ♖ & # 9814u26562656 ♗ & # 9815u26572657 ♘ & # 9816u26582658 ♙ & # 9817u26592659 ♣ Poker symbol UNICODEHTMLJSCSSHTMLJSCSS ♠ & # 9824u26602660 ♣ & # 9827u26632663 ♥ & # 9829u26652665 ♦ & # 9830u26662666 ♤ & # 9828u26642664 ♧ & # 9831u26672667 ♡ & # 9825u26612661 ♢ & # 9826u26622662 Ω Greek alphabet symbol UNICODE symbol UNICODEHTMLJSCSSHTMLJSCSS & # 913u0391 "391" & # 914u0392 "392 Γ & # 915u0393" 393 Δ & # 916u0394 "394" & # 916u0394 "395" & # 916u0394 "396" & # 917u0395 "397 °& # 917u0395" 398 "& # 917u0395" 399 "& # 922u039A" 39A A & # 923u039B "39B" & # 924u039C "39C" & # 925u039D "39D" & # 926u039E "39e" & # 927u039F "39F Pi & # 928u03A0" 3A0 P & # 929u03A1 "3A1 Σ & # 931u03A3" 3A3 "& # 932u03A4" 3A4 γ & # 933u03A5 3A5 & # 934u03A6 "3A6 X & # 935u03A7" 3A7 ψ & # 936u03A8 3A8 Ω & # 937u03A9 3A9 ☩ Cross symbol UNICODEHTMLJSCSSHTMLJSCSS ☨ & # 9768u26282628 ✝& # 9769u26292629 ✞& # 9769u26292629 ✟ & # 10013u271D271D ✠ & # 10013u271D271D ✚ & # 100u271A271A271A271A271A271A271A271A271A271A271A271A271A271A271A271AA271AA271AA271AA271AA271A271AA271AA271A271AA271A271AA271AA271AA271AA271AA271AA271AA271AAA271AA271A271AAA271A271AA271A271AA271A271AA271A271AA271A271A271A271A271 # 10018u27222722 ✤ & # 10020u27242724 ✣ & # 10019u27232723 ✥ & # 10021u27252725 ©legal symbol UNICODE symbol UNICODEHTMLJSCSSHTMLJSCSS ®& # 174u00AE "0AE ©& # 169u00A9" 0A9 ℗ & # 8471u21172117 ™& # 153u0099 099 ℠& # 8480u21202120

@ punctuation and symbols UNICODE symbol UNICODEHTMLJSCSSHTMLJSCSS «& # 171u00AB 0AB & # 187u00BB 0BB < & # 139u008B 08B > & # 155u009B 09B "& # 8220u201C201C & # 8221u201D201D'‘u20182018'&# 8217u20192019 & # 8226u20222022 ◦ & # 9702u25E625E6 & # 161u00A1 0A1 & # 191u00BF punctuation 0BF ℅ & # 8453u21052105 № & # 8470u21162116&&u0026 punctuation 026@@u0040 040 ℞ & # 8478u211E211E ℃ & # 8451u21032103 ℉ & # 8457u21092109 °& # 176u00B0 0B0 | & # 124u007C cargo 07C 0A6-–u20132013-—u20142014 & # 166u00A6 0A6-–u20132013-—u20142014 … & # 8230u202620262626 & # 182u00B6 0B6 ∼ & # 8764u223C223C ≠ & # 8800u22602260.

Summary and classification:

1. Characteristic

©©©copyright Mark |

| | Vertical bar, often used as a separator dot in menus or navigation, sometimes used as an arrow on the menu separator ↑↑↑, and often used as a web page "return to the top of the page" to identify "return to the top of the page" logo "euro logo" superscript 2, the square in mathematics, commonly used in number processing, such as: 1000 "1/2" ♥♥♥ heart, used to express your heart.

2 commonly used

The space & and symbol, and the "©©©copyright mark ®®»Registration Mark" left double quotation marks "right double quotation marks" left triangle double quotation marks "" right triangle double quotation marks "" right triangle single quotation marks "> right triangle single quotation marks" > right triangle single quotation marks "," right triangle single quotation marks "," chapter markings, section marks, paragraph marks, dot (middle) ". Ellipsis |

| | Vertical line "broken" vertical bar-short dash-long dash

3. Monetary category

General currency symbol $

The dollar sign denotes the pound, the pound, the yen, the euro.

4 mathematics class

Greater than sign ≤≤≤ less than or equal sign ≥≥≥ greater than or equal sign × × multiplication sign / & pide; / division sign −−− minus sign ±plus / minus sign ≠≠≠ is not equal to the sign "use superscript 1", superscript 2 "superscript 3", superscript 1/4 "3.3/4" per thousand, °°°√√√ square root ∞∞∞ infinite.

5. Direction class

←←← left Arrow ↑↑↑ up Arrow →→→ right Arrow ↓↓↓ Down Arrow ↔↔↔ left Arrow ↵↵↵ return Arrow ⌈⌈⌈ left Upper limit ⌉⌉⌉ right Upper limit ⌊⌊⌊ left Lower limit ⌋⌋⌋ right Lower limit

6 other

♠♠♠ spades, ♣♣♣ clubs, ♥♥♥ hearts, heart ♦♦♦ square, ◊◊◊ diamond, dagger, double sword, reverse question mark

⇠ Arrowhead symbols UNICODE symbols UNICODEHTMLJSCSSHTMLJSCSS ⇠ & # 8672u21E021E0 ⇢ & # 8674u21E221E2 ⇡ & # 8673u21E121E1 ⇣ & # 8675u21E321E3 ↞ & # 8606u219E219E ↠ & # 8608u21A021A0 ↟ & # 8607u219F219F ↡ & # 8609u21A121A1 ← & # 8592u21902190 → & # 8594u21922192 ↑ & # 8593u21912191 ↓ & # 8595u21932193 ↔ & # 8596u21942194 ↕ & # 8597u21952195 ⇄ & # 8644u21C421C4 ⇅ & # 8645u21C521C5 ↢ & # 8645u21C521C5 ↣ & # 8645u21C521C5 # 8610u21A221A2 & # 8610u21A221A2 & # 8610u21A221A2 # 8610u21A221A2 & # 8610u21A221A2 # 8610u21A221A2 & # 8610u21A221A2 # 8610u21A221A2 & # 8645u21C521C5 # 8610u21A221A2 & # 8645u21C521C5 # 8610u21A221A2 & # 8621u21AD21AD ⇦ & # 8678u21E621E6 ⇨ & # 8680u21E821E8 ⇧ & # 8679u21E721E7 ⇩ & # 8681u21E921E9 ▲ & # 9650u25B225B2 ► & # 9658u25BA25BA ▼ & # 9660u25BC25BC ◄ & # 9668u25C425C4 ➔ & # 10132u27942794 ➙ & # 10137u27992799 ➨ & # 10152u27A827A8 ➲ & # 10162u27B227B2 ➜& # 10140u279C279C ➞& # 10142u279E279E ➟ & # 10143u279F279F ➠ & # 10144u27A027A0 ➤ & # 10144u27A027A0 ➥ & # 10148u27A427A4 ➦ & # 10148u27A427A4 & # 10149u27A527A5 & # 10149u27A527A5 # 10149u27A527A5 & # 10150u27A627A6 # 10150u27A627A6 & # 10149u27A527A5 & # 10149u27A527A5 & # 10148u27A427A4 & # 10148u27A427A4 & # 10148u27A427A4 & # 8634u21BA21BA ↵ & # 8629u21B521B5 ↯ & # 8623u21AF21AF ➾ & # 10174u27BE27BE

❤ basic shape symbol UNICODE symbol UNICODEHTMLJSCSSHTMLJSCSS ❤ & # 10084u27642764 ✈ & # 9992u27082708 ★ & # 9733u26052605 ✦ & # 10022u27262726 ☀ & # 9728u26002600 ◆ & # 9670u25C625C6 ◈ & # 9672u25C825C8 ▣ & # 9635u25A325A3 ☻ & # 9787u263B263B ☺ & # 9786u263A263A ☹ & # 9785u26392639 ✉ & # 9993u27092709 ☎ & # 9742u260E260E ☏ & # 9743u260F260F ✆ & # 9990u2706270665533uFFFDFFFD & # 65533uFFFDFFFD ☁ & # 65533uFFFDFFFD ☂ & # 9729u26012601 ❄ & # 9729u26012601 & # 9730u26022602 & # 9730u26022602 & # 10052u27442744 & # 10052u27442744 & # 9730u26022602 & # 9730u26022602 9749u97499749 ❂ & # 10050u27422742 ☥ & # 9765u26252625 ☮ & # 9774u262E262E ☯ & # 9775u262F262F ☪ & # 9770u262A262A ☤ & # 9764u26242624 ✄ & # 9988u27042704 ✂ & # 9986u27022702 ☸ & # 9784u26382638 ⚓ & # 9875u26932693 ☣ & # 9763u26232623 ⚠ & # 9888u26A026A0 ⚡ & # 9889u26A126A1 ☢ & # 9762u26222622 ♻ & # 9851u267B267B ♿ & # 9855u267F267F ☠ & # 9760u26202620 ¥currency symbol UNICODE UNICODE 024 & # UNICODEHTMLJSCSSHTMLJSCSS$$u0024 UNICODEHTMLJSCSSHTMLJSCSS$$u0024, & & # 162u00A2 UNICODEHTMLJSCSSHTMLJSCSS$$u0024 & # 162u00A2 162u00A2 & # 8364u20AC20AC20AC20AC20AC20AC20ACY & & # 8369u20B120B1bicycle & # 162u00A2 to mathematical symbols UNICODE symbol UNICODEHTMLJSCSSHTMLJSCSS UNICODE & # 189u00BD "0BD quarter & # 188u00BC" 0BC & # 190u00BE "0BE ⅓ & # 8531u21532153 ⅔ & # 8532u21542154 ⅛ & # 8539u215B215B ⅜ & # 8540u215C215C ⅝ & # 8541u215D215D ‰ & # 8240u20302030%%u0025" 025>u003E "03e ♫ Musical symbol UNICODE symbol UNICODEHTMLJSCSSHTMLJSCSS ♩ & # 9833u26692669 ♪ & # 9834u266A266A ♫ & # 9835u266B266B ♬ & # 9836u266C266C ♭ & # 9837u266D266D ♯ & # 9839u266F266F ✖ error symbol UNICODE symbol UNICODE

& # 160u00A0 permanent 0A0 ☐ & # 9744u26102610 ☑ & # 9745u26112611 ☒ & # 9746u26122612 ✓ & # 10003u27132713 ✔ & # 10004u27142714 ✕ & # 10005u1000510005 ✖ & # 10006u27162716 ✗ & # 10007u27172717 ✘ & # 10008u27182718 ★ are all star symbols UNICODEHTMLJSCSSHTMLJSCSS ★ & # 9733u26052605 ✭ & # 10029u272D272D ✮ & # 10030u272E272E ☆ & # 9734u26062606 ✪ & # 9734u26062606 ✡ & # 10026u272A272A ✯ & # 10026u272A272A ✵ & # 10026u272A272A ✶ & # 10017u27212721 & # 10017u27212721 & # 10017u27212721 & # 10031u272F272F & # 10017u27212721 & # 10017u27212721 & # 10017u27212721 & # 10017u27212721 & # 10026u272A272A & # 10026u272A272A & # 10026u272A272A # 10043u273B273B ✽ & # 10045u273D273D ❋ & # 10059u274B274B ❆ & # 10054u27462746 ❄ & # 10052u27442744 ❅ & # 10053u27452745 ♒ Constellation symbol UNICODE symbol UNICODEHTMLJSCSSHTMLJSCSS ♈ & # 9800u26482648 ♉ & # 9801u26492649 ♊ & # 9802u264A264A ♋ & # 9803u264B264B ♌ & # 9804u264C264C ♍ & # 9805u264D264D ♎ & # 9806u264E264E ♏ & # 9807u264F264F ♐ & # 9808u26502650 ♑ & # 9808u26502650 ♒ & # 9809u26512651 ♓ & # 9809u26512651 ♚ Chess symbol 9809u26512651 # 9810u26522652 & # 9810u26522652 & # 9811u26532653 & # 9811u26532653 # 9811u26532653 & # 9810u26522652 # 9810u26522652 & # 9809u26512651 # 9812u26542654 ♕ & # 9813u26552655 ♖ & # 9814u26562656 ♗ & # 9815u26572657 ♘ & # 9816u26582658 ♙ & # 9817u26592659 ♣ Poker symbol UNICODEHTMLJSCSSHTMLJSCSS ♠ & # 9824u26602660 ♣ & # 9827u26632663 ♥ & # 9829u26652665 ♦ & # 9830u26662666 ♤ & # 9828u26642664 ♧ & # 9831u26672667 ♡ & # 9825u26612661 ♢ & # 9826u26622662 Ω Greek alphabet symbol UNICODE symbol UNICODEHTMLJSCSSHTMLJSCSS & # 913u0391 "391" & # 914u0392 "392 Γ & # 915u0393" 393 Δ & # 916u0394 "394" & # 916u0394 "395" & # 916u0394 "396" & # 917u0395 "397 °& # 917u0395" 398 "& # 917u0395" 399 "& # 922u039A" 39A A & # 923u039B "39B" & # 924u039C "39C" & # 925u039D "39D" & # 926u039E "39e" & # 927u039F "39F Pi & # 928u03A0" 3A0 P & # 929u03A1 "3A1 Σ & # 931u03A3" 3A3 "& # 932u03A4" 3A4 γ & # 933u03A5 3A5 & # 934u03A6 "3A6 X & # 935u03A7" 3A7 ψ & # 936u03A8 3A8 Ω & # 937u03A9 3A9 ☩ Cross symbol UNICODEHTMLJSCSSHTMLJSCSS ☨ & # 9768u26282628 ✝& # 9769u26292629 ✞& # 9769u26292629 ✟ & # 10013u271D271D ✠ & # 10013u271D271D ✚ & # 100u271A271A271A271A271A271A271A271A271A271A271A271A271A271A271A271AA271AA271AA271AA271AA271A271AA271AA271A271AA271A271AA271AA271AA271AA271AA271AA271AA271AAA271AA271A271AAA271AA271AA271AA271AA271AA271A271A271AA271A271A271A271A # 10018u27222722 ✤ & # 10020u27242724 ✣ & # 10019u27232723 ✥ & # 10021u27252725 ©legal symbol UNICODE symbol UNICODEHTMLJSCSSHTMLJSCSS ®& # 174u00AE "0AE ©& # 169u00A9" 0A9 ℗ & # 8471u21172117 ™& # 153u0099 099 ℠& # 8480u21202120

@ punctuation and symbols UNICODE symbol UNICODEHTMLJSCSSHTMLJSCSS «& # 171u00AB 0AB & # 187u00BB 0BB < & # 139u008B 08B > & # 155u009B 09B "& # 8220u201C201C & # 8221u201D201D'‘u20182018'&# 8217u20192019 & # 8226u20222022 ◦ & # 9702u25E625E6 & # 161u00A1 0A1 & # 191u00BF punctuation 0BF ℅ & # 8453u21052105 № & # 8470u21162116&&u0026 punctuation 026@@u0040 040 ℞ & # 8478u211E211E ℃ & # 8451u21032103 ℉ & # 8457u21092109 °& # 176u00B0 0B0 | & # 124u007C cargo 07C 0A6-–u20132013-—u20142014 & # 166u00A6 0A6-–u20132013-—u20142014 … & # 8230u202620262626 & # 182u00B6 0B6 ∼ & # 8764u223C223C ≠ & # 8800u22602260, this article "what are the special characters in HTML/CSS" has been introduced. If you want to master the knowledge of this article, you still need to practice and use it to understand it. If you want to know more related articles, please follow the industry information channel.

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